Thorp, Frank2022-11-152022-11-151927http://hdl.handle.net/10919/1125893 unnumbered, 59 leavesapplication/pdfenIn CopyrightLD5655.V855 1927.T547Chickens -- DiseasesPullorum diseaseSalmonella pullorumA bacteriological study, with special reference to Bacterium pullorum, of chicks dead in shell and chicks dying within three weeks after hatchingThesis