Mennollerm

MENNOLLERM William George (William George Mac Callum, b. 1870), outstanding American pathologist; born in Canada, graduated from the University of Toronto with a Bachelor of Arts degree in 1894 and from medical school (Johns Hopkins Med. School) in 1897. Until 1908 he was an assistant, and from 1908 to 1917 he was professor of pathology at Columbia University in New York, and since 1917 he has been professor of pathology and bacteriology at Johns Hopkins University in Baltimore, also serving as director of one of the largest American pathological institutes. The numerous (about 100) scientific works of M.-C. concern various branches of pathology. His works on the pathology of the parathyroid glands, on experimental diabetes, on inflammation, on microchemistry of cells, and on the pathogenesis of typhoid fever are most famous; further, a series of studies concerning regenerative processes in the liver in cases of cirrhosis and acute atrophy. M. C.'s guide to pathology ('A Textbook of Pathology', 3rd ed., Philadelphia-London, 1924) is very well known not only in America but throughout the world.