iisitde:^j^. 



Address, annual, of president, 17. 

 Anatomical studies of tlie leaves of 



Sporobolus and Panicum, 148. 

 Anatomy of Sphasrium. 173. 

 Andrews, L. W., on reduction of sulphuric 



acid, 37. 

 Annual address of president, 17. 

 Articles of incorporation, 8. 

 Area of slate near Nashua, N. H., 66. 

 Associate members, list of, 11. 



Bacteria. Chromogenic, 135. 



Bain, H. F., report of librarian, 14. 



Ball, E. D., a study of the genus Clastop- 

 tera, 182. 



Baris conftnis. 207. 



Baris dolosa, 210. 



Beach, Alice M., contributions to a 

 knowledge of the tlirlpidas of Iowa, 

 214. 



Biologic notes on certain Iowa insects, 202. 



Boston basin, geology of, 72. 



Buchanan gravels: An interglacial de- 

 posit in Buchanan county, Iowa, 58. 



Calvin, S., the Le Olaire limestone, 52. 

 Buchanan gravels, 58. 



Carver, G. w. and Pammel, L. H., fungus 

 diseases, 140. 



Carver, G. W., and Stewart, F. C, Inocula- 

 tion experiments with Gymnosporan- 

 giunx tnacnipus. 



Cephalopods, two remarkable, from upper 

 Paleozoic, 76. 



Cercopid;u, 182. 



Chironornus, sp., 2tl. 



Chromogenic bacteria, some notes on, 135. 



Cicadida^ of Iowa, observations on the, 193. 



Cicada dorsata. 193. 



septcn-decim, 194. 

 tihicen, 193. 



Olastoptera, a study of the genus, 182. 



Ckistoptera, 183. 



Clastoptera delicata, 184. 

 ohtusa, 188. 

 Xiroteus, 186. 

 xanthocephala, 188. 



Clays of the Indianola Brick, Tile and 

 Pottery works, 40. 



Combs, Robt., and Pammel, L. H., 

 Chromogenic bacteria, 135. 



Cone-in-Oone. nature of, 75. 



Constitution of the academy, 7. 



Corresponding members, list of, 11. 



County parks, 91. 



Cyclostome ear, homologies of, 29. 



Cosmos weevil, 307. 



Deep Wells in Des Moines county, some 

 facts brought to light by, 62. 



Drew, G. A.. Anatomy of Sphwriuin sulca- 

 tum, 173. 



Ear of cyclostome, homologies of. 29. 

 Encrinurus, variation in the position of 



tlie nodes in axial segments of pygi- 



dium of a species of. 79. 

 Entomostraca, preliminary notes on the 



Iowa, 170. 

 Epicarus imbricatus ,205. 



Flora of Western Iowa, 106. 



Fellows, list of, 10. 



Ferns, comparative study of spores of 



Nortli AnuTican, 159. 

 Flora of Western Iowa, 106. 

 Forest distribution in Iowa, 96. 

 Forest preservation, resolutions on. 15. 

 Frisk, E. E , and T. P. Hall, mad stone, 45. 

 Fultz, F. M., Recent discoveries of glacial 



scoring.s, 60. 

 Some facts brought to light by deep 



wells. 62. 

 Fungus diseases of plants at Ames, 



Iowa, 1B95, 140. 



Geology of the Boston basin, 72. 



Gclechia sp., 202. 



Glacial scorings, recent discoveries of, in 



S. E, Iowa, 60. 

 Grasses, anatomical study of, 150. 

 Gravitation, pliysical theories of, 47. 

 Ground cherry seed moth, 202. 

 Gymnosporangiam macropus Inoculation 



experiments with, 162. 



Hall, T. P., physical theories of gravita- 

 tion, 47. 

 Unit systems and dimensions. 45. 



Hall, T. P. and Frisk, E. E ,a mad stone, 45. 



neliothrips, 216. 



Homologies of the Cyclostome ear, 29. 



Hendrixson, report of library commit- 

 tee, 15. 



Inoculation experiments with Gymnos- 



porangium macropus, 162. 

 Insects, biologic notes on certain Iowa, 202 . 



Keyes, C. R., note on the nature of cone- 

 in-cone, 75. 

 Two remarkable Cephalopods from the 

 Upper Paleozoic, 76. 



Lake preservation, resolution on, 15. 

 Lead and Zinc mines, 64. 

 Le Claire, limestone, 52. 

 Leonard, A. G., recent developments in 

 the Dubuque lead and zinc mines, 64. 

 Librarian, report of, 14 

 Loess, a theory of the, 82. 



IVIad stone, a, 45. 



Macbride, T. H., county parks. 91. 



Forest distriliution in Iowa, 96. 



The nomenclature question among 

 the slime moulds, 101. 



