| A - General Works, Encyclopedias,
Almanacs |
L - Education |
| B - Philosophy, Psychology, Religion |
M - Music |
| C - Auxiliary Sciences of History |
N - Fine Arts |
| D - History: General and Outside |
P - Language and the Americas Literature |
| E - History: Western Hemisphere |
Q - Science |
| F - History: United States |
R - Medicine |
| G - Geography, Anthropology, Recreation |
S - Agriculture |
| H - Social Sciences |
T - Technology |
| J - Political Science |
U - Military Science |
| K - Law |
V - Naval Science |
| KFC - Connecticut Law |
Z - Bibliography, Library Science |
