SUBJECT INDEX. 
331 
Ulrich on afl&nities of Trepostomata, | 
122-5. j 
classification of Cyclostomata, 
xxxiv-v. I 
Variation, individual, xxiv, 87, 238, j 
255. i 
Vine on Bryozoa and age of Farringdon 
Sponge Bed, xliii-iv. 
Waters, classification of Cyclostomata, 
xxxiii-iv. 
Waters, ‘ Pore-tube,’ xxi. 
on stratigraphical value of 
Bryozoa, xlii, 3. 
Zoarial characters, value in classifica- 
tion, xxiv-vi, 46. 
Zonal value of Bryozoa, xlii-iii. 
Zooecial characters, value in classifica- 
tion, xxvi, 123-4. 
