CONTENTS OF THIS NUMBER. 
‘Noves, Miss Arice Avr—The Biology of the Net- 
Spinning Trichoptera of Cascadilla Creek......-. 251 
Mosuer, Epna—The Classification of the Pupae of 
the Ceratocampide and Hemileucide...-....-.. 277 
Brann Wi.Liam—Notes on the Life History and 
eAnatomy of Siphona Phisize Cogice Sees 301 
NEwcoMER, HE. J.—Some Notes on Digestion and the 
Cell Structure of the Digestive leckarees in 
Insects. cir late: KLE) eer as ea STY 
| BAUMBERGER, J. Percy—Studies in the i anigévily of 
SESOCIS AO are ee Tea aut ee Satie tar 323 
McGrecor, EK. A.—Four New T ctranychids. BRS A st 54 
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