400 INDEX. 



Trilasmis, genus, 99. 

 ebumea, 112. 

 Triton, genus, 156. 



fasciculatus, 163. 



Upopi, or young acari, 18. 



Vesiculae seminales, 56. 



Valves, general description of, 28. 



Valves, chemical nature of, 30. 



horny, colour changed by 



pressure, 184. 

 primordial, 22. 



Wagner, R., on the male organs of 

 generation, 55. 



Xiphidium, 215. 



C. AND J. ADLARD, PRINTERS, 



BARTHOLOMKW Ci.OSK. 



