The Online Books Page

Books by La Marr Ritchie:

Books in the extended shelves:

• Ritchie, La Marr, 1892-: Automatic apparatus for intermittent testing (U.S. Dept. of Commerce, Bureau of Standards :, 1920), also by George Wood Vinal and United States. National Bureau of Standards (page images at HathiTrust)
• Ritchie, La Marr, 1892-: A new method for determining the rate of sulphation of storage-battery plates ([U.S. Dept. of Commerce, Bureau of Standards] :, 1922), also by George Wood Vinal and United States. National Bureau of Standards (page images at HathiTrust)
• Ritchie, La Marr, 1892-: Relation of voltage of dry cells to hydrogen-ion concentration (U.S. Dept. of Commerce, Bureau of Standards :, 1920), also by Homer Denison Holler and United States. National Bureau of Standards (page images at HathiTrust)

Find more by La Marr Ritchie at your library, or elsewhere.