1. Time of occurrence and probable causes of mortality in the chick embryo.;Byerly;Conf. Papers, 4th World's Poultry Congress, Sec. A, Breeding and Incubation, 174-181.,1930
2. Some abnormalities of dead-in-shell.;Hale;Harper Adams Util. Poultry Jour., 15, 525-535.,1930
3. Studies in embryonic mortality in the fowl.;Hutt;I. The frequency of the various malpositions of the chick embryo and their significance. Proc. Roy. Soc. Edinburgh, 49.,1929
4. One cause of dead chicks in the shell.;Sanctuary;Poul. Sc., 4, 141-143.,1925
5. Malpositions—a factor in hatchability.;Smith;Proc. 22d Ann. Meeting Poul. Sci. Assoc., 66-71.,1930