41 
N 
Symphyla. . 
3431 
Trepostomata 
. . 2031 
Tables 
0030 
Trichoplax 
.. 1231 
Taenioglossa 
2231 
Trichoptera 
. . 3800 
Tardigrada 
2800 
Trigonalidae 
.. 4631 
Taxonomy, General 
.0231 
Trilobita . . 
. . 2800 
Technique 
0000 
Tubinares 
. . 5831 
Tectibranchiata . . 
2231 
Tubulifera 
.. 4631 
Tegument. . 
0207 
Tunicata . . 
. . 501 0 
Telegony . . 
0223 
Turbellaria 
. . 1231 
Teleostei . . 
5431 
Ungulata . . 
.. 6031 
Teleostomi 
5431 
Urodela . . 
.. 5631 
Tenthredinidae 
4631 
Utility 
. . 0060 
Teratological Variations. . 
0223 
Variation . . 
. . 0223 
Termitidse 
3831 
Y ertebmta 
. . 5200 
Tetractinellida 
0C31 
Vespidae .. 
. . 4631 
Text Books 
0030 
Yestigibl Organs . . 
. . 0207 
Thoracostraca 
2631 
Voice 
.. 0219 
Tliysanoptera 
3600 
Xiphosura 
. . 2800 
Thysanura 
3631 
Zoantharia 
. . 0831 
Tillodontia 
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 
Zygodactylae 
.. 5831 
