Books by E. W. Callenbach:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Callenbach, E. W. (Ernest William), 1901-: The artificial propagation of ring-necked pheasants (Pennsylvania State College, School of Agriculture and Experiment Station, 1933), also by C. A. Hiller (page images at HathiTrust)- Callenbach, E. W. (Ernest William), 1901-: Effect of light and availability of feed on egg production (Pennsylvania State College, School of Agriculture, Agricultural Experiment Station, 1943), also by John E. Nicholas and R. R. Murphy (page images at HathiTrust)
- Callenbach, E. W. (Ernest William), 1901-: Effect of rearing environment on sexual development of fowls (Pennsylvania State College, School of Agriculture and Experiment Station, 1938), also by John E. Nicholas (page images at HathiTrust)
- Callenbach, E. W. (Ernest William), 1901-: Electric brooding under winter conditions (Pennsylvania State College, School of Agriculture, Agricultural Experiment Station, 1941), also by John E. Nicholas and R. R. Murphy (page images at HathiTrust)
- Callenbach, E. W. (Ernest William), 1901-: Feeding systems for laying hens (Pennsylvania State College, School of Agriculture, Agricultural Experiment Station, 1942), also by R. R. Murphy (page images at HathiTrust)
- Callenbach, E. W. (Ernest William), 1901-: Hen batteries (Pennsylvania State College, School of Agriculture and Experiment Station, 1935), also by H. C. Knandel (page images at HathiTrust)
- Callenbach, E. W. (Ernest William), 1901-: Influence of light on age at sexual maturity and ovulation rate of pullets (Pennsylvania State College, School of Agriculture, Agricultural Experiment Station, 1944), also by John E. Nicholas and R. R. Murphy (page images at HathiTrust)
- Callenbach, E. W. (Ernest William), 1901-: Light intensity as a factor in the artificial illumination of pullets (Pennsylvania State College, School of Agriculture, Agricultural Experiment Station, 1944), also by John E. Nicholas and R. R. Murphy (page images at HathiTrust)
- Callenbach, E. W. (Ernest William), 1901-: Managing confined fowls (Pennsylvania State College, School of Agriculture and Experiment Station, 1930), also by H. C. Knandel and P. H. Margolf (page images at HathiTrust)
- Callenbach, E. W. (Ernest William), 1901-: Pedigree poultry records (Pennsylvania State College, School of Agriculture and Experiment Station, 1927) (page images at HathiTrust)
- Callenbach, E. W. (Ernest William), 1901-: Poultry brooding systems (Pennsylvania State College, School of Agriculture and Experiment Station, 1937), also by John E. Nicholas and P. H. Margolf (page images at HathiTrust)
- Callenbach, E. W. (Ernest William), 1901-: Response of turkeys to artificial illumination (Pennsylvania State College, School of Agriculture, Agricultural Experiment Station, 1947), also by P. H. Margolf and J. A. Harper (page images at HathiTrust)
- Callenbach, E. W. (Ernest William), 1901-: Vitamin A and survival of bobwhite quail (Pennsylvania State College, School of Agriculture, Agricultural Experiment Station, 1953), also by T. A. Harper and Robert Vaughn Boucher (page images at HathiTrust)
Find more by E. W. Callenbach at your library, or elsewhere.