INDEX 



Acris gryllus, 127. 



Adams, C C, 25, 27, 133. 



Aeschnidae, 127. 



Agrionidae, 127, 129. 



Algae. 26. 



Allee. W. C, 21, 126. 



Amblystoma tigrinum, 128. 



American Lepidostrobus, 28, 107. 



Amnicola letsoni, 111, 113. 



limosa, 110, 111, 112. 

 lustrica, 110. 

 Amorgius americanum, 127. 

 Anax Junius, 127. 

 Ancylus, 110. 

 Ancylus tardus, 128. 

 Anodonta grandis, 110. 

 Aphaenogaster aquia, 138. 

 fulva, 138. 



" lamellidens, 138. 



" picea, 141. 



rudis. 141. 



" tennesseensis, 138. 



Arctestaphylos uva-ursi, 120. 

 Asclepias tuberosa, 122. 

 Asellus communis, 127. 129, 131. 

 Asiminia triloba, 122. 

 Atrypa marginalis, 100. 101. 



'' putilla, 98-102. 

 Auditing committee. 14. 

 Baker, F. C, 16, 20. 25, 21, 108. 

 Barnes, C. R., 157. 

 Bellerophon, 100. 

 Berosus, 127. 

 Biological Effect of Radium, 22, 



11. 

 Biological papers, 135. 

 Blatchley, R. S., 21, 85. 

 Brachymyrmex heeri, 139. 

 Branchipus, 29, 127, 

 By-Laws, 10. 

 Caldwell, O. W., 22. 144. 

 Calyculina securis. 112. 

 Camarotoechia acinus, 100. 



cliftonensis, 100-101. 



Cambarus immunis, 127. 

 Campanotus americanus, 141. 



castaneus, 141. 



lerrugineus, 141. 



herculanus, 141. 



ligniperdis, 141. 



minutus, 141. 



noveboracensis, 141. 



paucipilis, 141. 



pennsylvanicus, 141, 



subbarbatus. 141. 



tanquaryi, 141. 

 Campeloma integrum, 100-112. 

 Canthocampus, 127. 

 Ceanothus americanus, 122. 

 Ceratozamia floridana, 144. 



mexicana, 144. 

 Chamberlain, C. T., 20, 144. 145. 

 Chamberlin, T. C, 21, 55. 

 Channahon and Essex Limestone 



in Illinois, 21, 97. 

 Chara. 116. 



Chauliodes rastricornis. 127. 

 Chibonia, 128. 

 Chironomidae, 127. 

 Cladocera, 127. 

 Coereba ferrj-i. 160. 

 Cole, A. H.. 21. 145. 

 Colobopsis, 141. 

 Colymbetes sculptilis, 127. 

 Committee on Assistance to High 



Schools, 22, 2Z. 

 Committee on Co-operation with 



Nature-Study Agencies, 18. 

 Committee on Deep Drilling, 15. 

 Committee on Ecological Survey, 



24. 

 Committee to Influence Legisla- 

 tion in Favor of Protection of 

 Game Birds, 26. 

 Committee to Restrict Collection 



of Birds, 16. 

 Conrad, A. H., 22. 

 Cooper, W. S.. 2%, 132. 



