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Equations of motion

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• Mechanics

• Lagrange equations

• Motion equations

• Investigation of a clamshell roll-out ejection concept / (Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Office of Technical Services, Dept. of Commerce], [1971]), by Lawrence F. Hatakeyama, Goddard Space Flight Center, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Calculation of turbulent boundary layers with heat transfer and pressure gradient utilizing a compressibility transformation. (Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the National Technical Information Service [distributor], 1972), by J. Boccio, C. Economos, Langley Research Center, and Nassau County General Applied Science Laboratories (Westbury (page images at HathiTrust)
• A qualitative study of the complete set of solutions of the differential equation of motion of a test particle in the equatorial plane of the Kerr gravitational field / (Washington : National Aeronautics and Space Administration, 1973), by Harry E. Montgomery and F. K. Chan (page images at HathiTrust)
• A Study of the positions and velocities of a space station and a ferry vehicle during rendezvous and return / (Washington, D.C. : U.S. G.P.O., 1961), by John M. Eggleston, Harold D. Beck, United States National Aeronautics and Space Administration, and Langley Research Center (page images at HathiTrust)
• Computer mechanization of reentry equations with four degrees of freedom / (Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information, 1968), by R. M. Howe, University of Michigan, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Transient vibration analysis of linear systems using transition matrices / (Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information, 1968), by Anthony Craggs, University of Southampton, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• A lattice model for composite materials / (Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information [distributor], 1969), by Theodore R. Tauchert, A. Cemal Eringen, T. Y. Chang, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Analysis of the dynamic lateral stability of a delta-wing airplane with frequency-dependent stability derivatives / (Washington, [D.C.] : National Aeronautics and Space Administration, 1959), by Albert E. Brown, Albert A. Schy, and Langley Research Center (page images at HathiTrust)
• Spherical balloon response to three-dimensional time-dependent flows / (Washington, D.C. : National Aeronautics and Space Administration ; [Springfield, Va. : For sale by the National Technical Information Service], 1972), by George H. Fichtl and George C. Marshall Space Flight Center (page images at HathiTrust)
• Nonlinear analysis of physical librations I. ([Washington] : National Aeronautics and Space Administration, [1965]), by Raynor L. Duncombe, I. Michelson, Illinois Institute of Technology, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• A vector-dyadic development of the equations of motion for N-coupled rigid bodies and point masses / (Washington, D.C. : National Aeronautics and Space Administration ; [Springfield, Va. : For sale by the National Technical Information Service], 1974), by Harold P. Frisch and Goddard Space Flight Center (page images at HathiTrust)
• A vector-dyadic development of the equations of motion for N-coupled flexible bodies and point masses / (Washington, D.C. : National Aeronautics and Space Administration ; [Springfield, Va. : For sale by the National Technical Information Service], 1975), by Harold P. Frisch and Goddard Space Flight Center (page images at HathiTrust)
• Numerical calculation of the response of coastal waters to storm systems : with application to Hurricane Camille of August 17-22, 1969 / (Gainesville, Fla. : Coastal and Oceanographic Engineering Laboratory, University of Florida, 1972), by Bryan Rowell Pearce (page images at HathiTrust; US access only)
• A study of dynamics of train motion with special reference to the theory and the application of speed-time, distance-time, and speed-distance curves / (1917), by Sentaro Sekine (page images at HathiTrust; US access only)
• Water injection from a 9⁰ hemisphere-cone into a hypersonic airstream / (Washington, D.C. : National Aeronautics and Space Administration ; [For sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151], 1970), by William L. Weaver, William F. Hinson, Langley Research Center, and United States National Aeronautics and Space Administration (page images at HathiTrust; US access only)
• Space station rotational equations of motion / (Washington, D.C. : National Aeronautics and Space Administration, Scientific and Technical Information Branch ; Springfield, Va. : For sale by the National Technical Information Service, 1985), by Mario H. Rheinfurth, Stanley N. Carroll, and George C. Marshall Space Flight Center (page images at HathiTrust)
• Technique to eliminate computational instability in multibody simulations employing the Lagrange multiplier / (Washington, D.C. : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1992), by G. Watts and George C. Marshall Space Flight Center. Structures and Dynamics Laboratory (page images at HathiTrust)
• Theoretical study of vortex shedding from bodies of revolution undergoing coning motion / (Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information [distributor], 1969), by Gary D. Kuhn, Jack N. Nielsen, Selden B. Spangler, Ames Research Center, and Inc Nielsen Engineering & Research (page images at HathiTrust)
• The transient response of coupled acousto-mechanical systems / (Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information [distributor], 1969), by A. Craggs, Langley Research Center, and University of Southampton (page images at HathiTrust)
• Numerical calculations of viscous compressible fluid flow around a stationary cylinder / (Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information [distributor], 1970), by John G. Trulio, Leonard Walitt, George C. Marshall Space Flight Center, and inc Applied Theory (page images at HathiTrust)
• A method for analyzing the aeroelastic stability of a helicopter rotor in forward flight / (Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information [distributor], 1969), by Peter Crimi, Applied Science Associates, and Langley Research Center (page images at HathiTrust)
• Solution of the exact equations for three-dimensional atmospheric entry using directly matched asymptotic expansions / (Washington : U.S. National Aeronautics and Space Administration, Langley Research Center ; Springfield, Va. : For sale by the National Technical Information Service, 1976), by Adolf Busemann, Robert D. Culp, Nguyen X. Vinh, University of Colorado, and Langley Research Center (page images at HathiTrust)
• Aeorelastic analysis for helicopter rotor blades with time-variable, nonlinear structural twist and multiple structural redundancy-mathematical derivation and program user's manual / (Washington : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the National Technical Information Service, 1976), by Richard L. Bielawa, United Technologies Research Center, United States National Aeronautics and Space Administration, Langley Research Center, and U.S. Army Air Mobility Research and Development Laboratory (page images at HathiTrust)
• Some aspects of essentially nonoscillatory (ENO) formulations for the Euler equations / (Washington, D.C. : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division ; Springfield, Va. : For sale by the National Technical Information Service, 1990), by Sukumar R. Chakravarthy, Langley Research Center, and Rockwell International. Science Center (page images at HathiTrust)
• Identification of system parameters from input-output data with application to air vehicles / (Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Clearinghouse for Federal Scientific and Technical, Springfield, Virginia 22151], 1971), by Dallas G. Denery, Ames Research Center, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Effect of eccentricity of the lunar orbit, oblateness of the Earth, and solar gravitational field on lunar trajectories / (Washington, [D.C.] : National Aeronautics and Space Administration, 1960), by William H. Michael, Robert H. Tolson, and Langley Research Center (page images at HathiTrust)
• Analysis of one-dimensional ion rocket with grid neutralization / (Washington, [D.C.] : National Aeronautics and Space Administration, 1960), by Harold Mirels, Burt M. Rosenbaum, and Lewis Research Center (page images at HathiTrust)
• Formulation on statistical trajectory estimation programs / (Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information [distributor], 1969), by William E. Wagner, Arno C. Serold, Langley Research Center, and Martin Marietta Corporation (page images at HathiTrust)
• Nonlinear equations of motion for the elastic bending and torsion of twisted nonuniform rotor blades / (Washington, D.C. : National Aeronautics and Space Administration ; [Springfield, Va. : For sale by the National Technical Information Service], 1974), by Dewey H. Hodges, E. H. Dowell, U.S. Army Air Mobility Research and Development Laboratory, and Ames Research Center (page images at HathiTrust)
• Determination of mean orbital elements from initial conditions for a vinti ballistic trajectory / (Washington, D.C. : National Aeronautics and Space Administration ; [For sale by the Clearinghouse for Federal Scientific and Technical, Springfield, Virginia 22151], 1970), by Harvey Walden, Goddard Space Flight Center, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Numerical integration of orbits in multirevolution steps. (Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Office of Technical Services, Dept. of Commerce], [1970]), by C. E. Velez, Goddard Space Flight Center, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• The effects of a nonrigidly supported ballast on the dynamics of a slender body descending through the atmosphere. (Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Office of Technical Services, Dept. of Commerce], [1970]), by Gerald N. Malcolm, Ames Research Center, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Electron dynamics in a plasma focus / (Washington : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the National Technical Information Service, 1977), by Frank Hohl, Patricia A. Winters, S. Peter Gary, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Motion of an artificial satellite under combined influence of planar and Keplerian force fields / (Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151], 1968), by Rowland E. Burns, George C. Marshall Space Flight Center, and United States National Aeronautics and Space Administration (page images at HathiTrust; US access only)
• A mathematical model for calculating the flight dynamics of a general parachute-payload system / (Washington, D.C. : National Aeronautics and Space Administration ; [For sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 2215], 1968), by Joe D. Gamble, Manned Spacecraft Center (U.S.), and United States National Aeronautics and Space Administration (page images at HathiTrust; US access only)
• Transmission line models of Magnon-Phonon modes in ferrites., by James C. Sethares and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• Transmission line models of magnon-phonon modes in ferrites., by James C. Sethares and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• Estimation of flight performance with closed-form approximations to the equations of motion / (Washington, D.C. : National Aeronautics and Space Administration ; [For sale by the Office of Technical Services, Department of Commerce, Washington, D.C. 20230], 1966), by Charlie M. Jackson, Langley Research Center, and United States National Aeronautics and Space Administration (page images at HathiTrust; US access only)
• Analysis of flow through a sphere : first report / (Oakridge, TN : Oakridge National Laboratory, 1952), by D. H. Fax, George F. Wislicenus, S. C. Traugott, U.S. Atomic Energy Commission, and Oak Ridge National Laboratory Reactor Experimental Engineering Division (page images at HathiTrust)
• The dynamical effect of inertial waves on the free flight motion of a body containing several eccentrically located, liquid-filled cylinders /, by Wayman Eugene Scott and U.S. Army Ballistic Research Laboratory (page images at HathiTrust)
• An expansion of tables II and III of N.A.C.A. TN no. 1428., by U.S. Army Ballistic Research Laboratory (page images at HathiTrust)
• An exploratory theoretical investigation of the effect of longitudinal surface curvature on the turbulent boundary layer /, by Neal Tetervin and Md.) Naval Ordnance Laboratory (White Oak (page images at HathiTrust)
• Computation of hypersonic axially symmetric flow at low Mach numbers /, by David Korn and Courant Institute of Mathematical Sciences (page images at HathiTrust)
• On a class of exact solutions of the equations of motion of a viscous fluid / (Washington, D.C. : NACA, 1953), by V. I. Yatseyev and United States. National Advisory Committee for Aeronautics (page images at HathiTrust)
• Experimental and predicted lateral-directional dynamic-response characteristics of a large flexible 35 degree swept-wing airplane at an altitude of 35,000 feet / (Washington, D.C. : National Advisory Committee for Aeronautics, [1956]), by Stuart C. Brown, Euclid C. Holleman, and United States. National Advisory Committee for Aeronautics (page images at HathiTrust)
• Differential equations of motion for combined flapwise bending, chordwise bending, and torsion of twisted nonuniform rotor blades / (Washington : National Advisory Committee for Aeronautics, [1957]), by John C. Houbolt, George W. Brooks, and United States. National Advisory Committee for Aeronautics (page images at HathiTrust)
• Theoretical characteristics of several fluid-metering instruments / ([Albuquerque, N.M.] : Sandia Corporation ; Washington, D.C. : Available from the Office of Technical Services, Department of Commerce, [1960]), by M. D. Bennett and Sandia Corporation (page images at HathiTrust)
• The PARMESH dynamics program / (Madison, Wis. : Midwestern Universities Research Association ; Washington, D.C. : Available from the Office of Technical Services, U.S. Dept. of Commerce, 1961), by Jess Anderson, G Parzen, U.S. Atomic Energy Commission, and Midwestern Universities Research Association (page images at HathiTrust)
• An exact re-statement of the equations of motion of a rigid projectile for use with modern computing machinery /, by Serge J. Zaroodny, U.S. Army Ballistic Research Laboratory, and U.S. Atomic Energy Commission (page images at HathiTrust)
• Chapman-Kirk reduction of free-flight range data to obtain nonlinear aerodynamic coefficients /, by Robert H. Whyte, James W. Bradley, Angela Jeung, U.S. Army Ballistic Research Laboratory, and U.S. Atomic Energy Commission (page images at HathiTrust)
• Deceleration and vertical motion of a gas puff released into the upper atmosphere / (L.G. Hanscom Field, Bedford, Massachusetts : Air Force Cambridge Research Laboratories, Air Force Systems Command, United States Air Force, 1973), by Milton M. Klein and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• Thermally stratified compressible fluid motion on a rotating sphere with gravitation / (L.G. Hanscom Field, Bedford, Massachusetts : Air Force Cambridge Research Laboratories, Air Force Systems Command, United States Air Force, 1973), by Edmond M. Dewan and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• An exact solution for the rotation of the atmosphere about the spheroidal earth / (L.G. Hanscom Field, Bedford, Massachusetts : Air Force Cambridge Research Laboratories, Air Force Systems Command, United States Air Force, 1973), by Harry E. Moses and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• Propagation of internal gravity waves in a medium of weak random vertical shear / (L.G. Hanscom Field, Bedford, Massachusetts : Air Force Cambridge Research Laboratories, Air Force Systems Command, United States Air Force, 1973), by J. M. Forbes and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• A dynamic model of the general theory of electric machines /, by A. V. Gaponov-Grekhov, U.S. Atomic Energy Commission, and National Science Foundation (U.S.) (page images at HathiTrust)
• Equations of motion and field equations in the five-dimensional unitary theory of relativity /, by Roman S. Ingarden, U.S. Atomic Energy Commission, and National Science Foundation (U.S.) (page images at HathiTrust)
• The motion of trails through fluids with constant velocity shear /, by Harry E. Moses and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• An Investigation of the damping in pitch characteristics of a ten degree cone /, by A. M. Morrison, W. R. Lawrence, J. E. Holmes, and Naval Surface Weapons Center. White Oak Laboratory (page images at HathiTrust)
• Handbook of blunt-body aerodynamics: volume 1 - static stability. /, by John A. Darling and Md.) Naval Ordnance Laboratory (White Oak (page images at HathiTrust)
• Development of weapon delivery models and analysis programs., by A. Ferit Konar, Honeywell Inc. Systems and Research Division, Air Force Flight Dynamics Laboratory (U.S.), and Armament Delivery Analysis Programming System (ADAPS) (page images at HathiTrust)
• Development of weapon delivery models and analysis programs., by A. Ferit Konar, Michael D. Ward, Honeywell Inc. Systems and Research Division, Air Force Flight Dynamics Laboratory (U.S.), and Armament Delivery Analysis Programming System (ADAPS) (page images at HathiTrust)
• Development of weapon delivery models and analysis programs., by A. Ferit Konar, Michael D. Ward, Honeywell Inc. Systems and Research Division, Air Force Flight Dynamics Laboratory (U.S.), and Armament Delivery Analysis Programming System (ADAPS) (page images at HathiTrust)
• Estimation of flying qualities of piloted airplanes /, by Robert J. Woodcock, D. E. Drake, sponsor Wright-Patterson Air Force Base (Ohio), sponsor Douglas Aircraft Company, and sponsor Air Force Flight Dynamics Laboratory (U.S.) (page images at HathiTrust)
• Measurement of the longitudinal moment of inertia of a flexible airplane / (Washington, D.C. : National Advisory Committee for Aeronautics, [1956]), by Henry Ambrose Jr Cole, Frances L. Bennion, United States. National Advisory Committee for Aeronautics. NACA research memorandum, United States. National Advisory Committee for Aeronautics, and Ames Research Center (page images at HathiTrust)
• Couette flow at intermediate pressures / (Oak Ridge, Tenn. : Union Carbide Nuclear Company, Oak Ridge Gaseous Diffusion Plant, 1958), by Wendell C. DeMarcus, Oak Ridge Gaseous Diffusion Plant, Union Carbide Nuclear Company, and U.S. Atomic Energy Commission (page images at HathiTrust)
• On the first and a related adiabatic invariant with a force in the direction of the velocity /, by Charles W. Dubs and U.S. Air Force Geophysics Laboratory (page images at HathiTrust)
• A simple exact solution for the motion of the atmosphere about the rotating earth and application to the rotation of the atmosphere /, by Harry E. Moses and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• Numerical model of the equatorial electrojet /, by Arthur D. Richmond and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• A mathematical model of the evolution of radiation fog /, by I. M Zakharova and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• Stability of a cable-moored airship / ([Albuquerque, N.M.] : Sandia Corporation ; [Washington, D.C. : Available from the Office of Technical Services, Department of Commerce, 1959]), by M. D. Bennett, U.S. Atomic Energy Commission, and Sandia Corporation (page images at HathiTrust; US access only)
• The PARMESH dynamics program / (Madison, Wis. : Midwestern Universities Research Association ; Washington, D.C. : Available from the Office of Technical Services, U.S. Dept. of Commerce, 1961), by Jess Anderson, G Parzen, U.S. Atomic Energy Commission, and Midwestern Universities Research Association (page images at HathiTrust)
• The PARMESH dynamics program-III / (Madison, Wis. : Midwestern Universities Research Association ; Washington, D.C. : Available from the Office of Technical Services, U.S. Dept. of Commerce, [1962]), by Jess Anderson, G Parzen, U.S. Atomic Energy Commission, and Midwestern Universities Research Association (page images at HathiTrust)
• Impulsive loading of a circular disk / ([Albuquerque, N.M.] : Sandia Corporation ; Washington, D.C. : Available from the Office of Technical Services, Department of Commerce, [1961]), by W. B. Murfin and Sandia Corporation (page images at HathiTrust)
• Impulsive loading of cylindrical shells / ([Albuquerque, N.M.] : Sandia Corporation ; Washington, D.C. : Available from the Office of Technical Services, Department of Commerce, [1961]), by W. B. Murfin and Sandia Corporation (page images at HathiTrust)
• A Numerical Model for Investigation of Ozone Transport in the Atmosphere /, by Louis Berkofsky, Shoshana Gyoeri, and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• Frequency model for the GI-T1-B single degree of freedom rate integrating gyroscope /, by Thomas S. Rhoades and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• Rayleigh's problem in hydromagnetics : impulsive motion of a pole-piece /, by G. S. S Ludford, United States. Air Force. Office of Scientific Research, and College Park. Institute for Fluid Dynamics and Applied Mathematics University of Maryland (page images at HathiTrust)
• Velocity distribution in the wake of bodies of revolution based on drag coefficient /, by Helmut G. Heinrich, Donald J. Eckstrom, sponsor Wright-Patterson Air Force Base (Ohio), sponsor United States. Air Force. Systems Command. Aeronautical Systems Division, and sponsor University of Minnesota. Department of Aerospace Engineering and Mechanics (page images at HathiTrust)
• Eigenfunctions of the curl operator, rotationally invariant Helmholtz theorem, and applications to electromagnetic theory and fluid dynamics /, by H. E. Moses and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• Analysis of propagation in space-time modulated media using many-space scale perturbation theory /, by Ronald L. Fante and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• Vertical shear modes in inertial waves on a rotating earth /, by Harry E. Moses and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• Unsteady aerodynamic pressures in transonic flow /, by L. V. Andrew, issuing agency Air Force Flight Dynamics Laboratory (U.S.), and sponsor North American Rockwell Corporation (page images at HathiTrust)
• Exact vorticity solutions of the incompressible Navier-Stokes equations /, by Harry E. Moses and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• The use of a multi-degree-of-freedom dual balance system to measure cross and cross-coupling derivatives /, by D. R. Haberman, sponsor Calspan Field Services, Arnold Engineering Development Center. sponsor, and United States. Air Force. Systems Command. issuing body (page images at HathiTrust)
• An analytic investigation of accuracy requirements for onboard instrumentation and film data for dynamically scaled wind tunnel drop models /, by K. S. Keen, R. L. Arterbury, C. H. Morgret, Inc. Sverdrup Technology, Arnold Engineering Development Center. sponsor, and United States. Air Force. Systems Command. issuing body (page images at HathiTrust)
• Characteristic boundary conditions for ARO-1 /, by Karl R. Kneile, James L. Jacocks, Donald C. Todd, sponsor Calspan Field Services, Inc. Sverdrup Technology, Arnold Engineering Development Center. sponsor, and United States. Air Force. Systems Command. issuing body (page images at HathiTrust)
• Equations for store separation motion simulations and instrumented model data reduction /, by K. S. Keen, sponsor Calspan Corporation, Arnold Engineering Development Center. sponsor, and United States. Air Force. Systems Command. issuing body (page images at HathiTrust)
• User's manual : extended capability magnus rotor and ballistic body 6-DOF trajectory program /, by James E. Brunk, United States. Air Force. Systems Command. sponsor, and Air Force Armament Laboratory. issuing body (page images at HathiTrust)
• Non-linear effects in the longitudinal dynamics of a lifting vehicle in a circular orbit /, by R. S. Rangi, University of Toronto. Institute of Aerophysics. sponsor, and United States. Air Force. Office of Scientific Research. issuing body (page images at HathiTrust)

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