T - Technology 19 F - General American History 13 Z - Library Science 13 A - General Works 10 G - Geography, Anthropology, Recreation 7 P - Language and Literature 6 K - Law 5 L - Education 5 R - Medicine 4 M - Music 2 S - Agriculture 2 B - Philosophy, Psychology, Religion 1 D - World History 1 V - Naval Science 1