12 THE PORTRAIT GALLERY 



at the time of his death he was endeavoring to find an immuniz- 

 ing agent against this disease. So eminent had he become in 

 state veterinary work that in 1895 Secretary Morton offered 

 him the position of Chief of the Bureau of Animal Industry. 

 His interest in veterinary education and his loyalty to Pennsyl- 

 vania led him to decline the offer. He was a prominent writer 

 on veterinary subjects. For years he conducted the veterinary 

 magazine through which he gave to his profession much of the 

 best in the languages of other countries, as well as many valuable 

 contributions of his own. In 1908 the University of Pennsyl- 

 vania conferred on him the honorary degree of Doctor of Medi- 

 cine. 



Dr. Pearson was a member of the Seventh International 

 Congress of Hygiene and Dermography held in London in 1891, 

 and of the Third International Congress for the Study of Tuber- 

 culosis held in Paris in 1898. He was Secretary and President 

 of the American Veterinary Medical Association, for two years 

 was president of the Pennsylvania State Veterinary Medical 

 Association, and for a similar period headed the Keystone Vet- 

 erinary Medical Society. Dr. Pearson was an active member of 

 the Guernsey Cattle Club at Philadelphia, of the Pennsylvania 

 Livestock Breeders' Association and of the State Grange. While 

 not a cattle showman. Dr. Pei^rson did a great deal toward in- 

 teresting men of wealth and discrimination in the cause of the 

 Guernsey, and was an instrumental factor in their dissemination 

 throughout the state. Professionally, Dr. Pearson held mem- 

 berships in the American Public Health Association, the City 

 Board of Health in Philadelphia, the State Board of Health, and 

 was Veterinarian to the State Board of Agriculture. 



