41 
N 
Symphyla, , 
3431 
Trepostomata 
2031 
Tables 
0030 
Trichoplax 
1231 
Taenioglossa 
2231 
Trichoptera 
3800 
Tarcligrada 
2800 
Trigonalidae 
4631 
Taxonomy, General 
0231 
Trilobita . . 
2800 
Technique 
0090 
Tubinares 
5831 
Tectibranchiata . . 
2231 
Tubulifera 
4631 
Tegument. . 
0207 
Tunicata . . 
5000 
Telegony . . 
0223 
Turbellaria 
1231 
Teleostei . , 
5431 
Ungulata . . 
6031 
Teleostomi 
5431 
Urodela . . 
5631 
Tentbredinidse . . 
4631 
Utility 
0060 
Teratological Variations. . 
0223 
Variation.. 
0223 
Termitidse 
3831 
Vertebrata 
5200 
Tetractinellida , 
0631 
VespidsB .. 
4631 
Text Books 
0030 
Vestigial Organs . . 
0207 
Thoracostraca 
2631 
Voice 
0219 
Thysanoptera 
3600 
Xiphosura 
2800 
Thysanura 
3631 
Zoantharia 
0831 
Tiliodontia 
6031 
Zoology, Comprehensive 
0000-0231 
Time of Appearance, Variations in 
0223 
Geographical 
0227 
Toxoglossa 
2231 
Special 
0403 
-6031 
Treatises, General 
0030 
Topographical 
, , 
0227 
Trematoda 
1231 
Zygodactylse 
5831 
