232 



Curtis. (4eo. L., '9(5, 259. 



Curti?s,R.(i.. '98, 202. 



Cusc-utn. (listribution o', '98, 214. 



Cuscuta, scales of, '98, 212. 



Cyanogen, '97, 98. 



Cyanophyceae, cell structure of, '94, 133. 



Cycas, stomates of, '93, 2.54; '94, 130. 



Cyclic quadralateral, '00, 91. 



Cyinatogaster, aberrant follicles in ovary, 



•98, 229. 

 Cymatogaster. development of se.xual organs 



of. '94. 138. 

 Cymatogaster. early stages in. '92, .58. 

 Cyprepedium, poisonous influence of some 



species of, '94. 136. 

 Cyprepedium spectabile, poisonous effects 



of. '93, 254. 

 Cyp' ess swamps of Knox County, '97, 172. 

 Cyprinodon,'91, 19. 

 Cyrtophyllus. '92, 109. 

 Cyrtophyllus concavus. '92, 108, 109. 

 Cyrtophyllus perspicillatus. '92, 110, 152. 



DAIHrXIA,'92. 92. 



Davis. B. M., '95. 45; '96, 259, 260. 



Davis, Chas.E., '96. 172. 



Davis, Sherman. '91. 49; '93, 262. 265; '%. 115. 



Davisson. S. C. '00. K». 



Dead animal tissue, absorption of poison by, 

 '93, 268. 



Dearborn County, '91, 14. 



Decatur County, butterflies, '91, 29; fishes, 

 "91,29; physical geography of, '91,28. 



Decorticated stems, absorption of water by, 

 '98, 169. 



Decticidinae, '92, 96. 149. 



Decticus dorsalis. '92, 151. 



Decticus pachymerus, '92, 150. 



Degeneration illustrated by the eyes of cave 

 fishes, '99, .31. 



Demonstration apparatus, '00, 115. 



Dendroica Kirtlandi, Baird. '93, 224. 



Dennis. D. W., '94, 1.3i5; '95, 44, 95; '97, 68; '98, 

 * 288: '99, 1.57; '00, 34. 



Denny, W. A., '98, 2,52. 



Desmids of Crawfordsville, '98, 163. 



I)eteetion of hydrocyanic acid, '93, 265. 



I)etection of strychnine in exhumed body, 

 '93, 267. 



Determination of valences, '92,169. 



Development of Etheostouiacaeruleum, pre- 

 liminary account of, '94, 135. 



Development of se.xual organs of Cymato- 

 gaster, '94, 1.38. 



Development of vivaparous fishes of Cali- 

 fornia. '91, 159. 



De.xtrose, action of ammonia upon, '94, 51. 

 Diaeretus Americanus, '92, 90. 

 Diaeretus bruniventris, '92,90. 

 Diaeretus websteri. 'J>2, 90. 

 Diagrams from iron and steel, '91,20. 

 1.4 Diamino-cyclohexane, '93,266. 

 Diamond fluorescence, '99,94; '00, 103. 

 Diastata. n. sp., '92,89. 

 Di-benzyl carbinamine, '91. 27, 28. 

 Dickson, Clinton, see W. E. Stone, '92. 

 Dictyola,the centrosome in, '98,166. 

 Diemyetylus viridescens. Hay on, '91, 144. 

 Differential invariants, '98, 1.3;5. 

 I'igestibility of the pentose carbohydrates, 



'91,57. 

 Dimeris rufipes, '92, 89. 

 Diphenylselenon, '96, 114. 

 Diplodus, '91, 19. 

 Diplosis tritici, '92, 92. 

 Dip of the Keokuk rock at Bloomington, "94, 



52. 

 Diptera, reared in Indiana. '98,224. 

 Diseases of sugar-beet root, '91,92. 

 Distribution of Uleditschia triacanthos and 



other trees, some facts in, '94, 27. 

 Dolan, J. P., '95, 235; '96, 279, 286. 

 Dolichony.x oryzivorus, '91, 167. 

 Dorner, Herman, '99, 116. 

 Doryphora. 10— lineata, 'ffi. 84. 

 Dragon flies of Indiana, additions to, '00,173. 

 Drilt deposits, "91, 66, 67. 

 Drift, limit of, '91, 15. 

 Dryer, Chas. R., '97, 73; '98. 268, 270, 273; '00, 



178. 

 Dubois County, fishes of, '95,159. 

 Duff, A. AVilmer, '95, 58, 77, &i, 84; '96, 97; "97, 



84,89,90; "98,82,84, a5. 

 Dynastes tityus, '92, 86. 



EAGLE LAKE, "96, 296. 



Earthworks, ancient, near Anderson. Ind., 

 '92. 30. 



Earthquake center, '91, 30. 



Earth(|uake. the Charleston, Mo.. '95, 51. 



Eetobia. "92, 155, 161. 



Ectobia flavocineta, '92, 161. 



Eetobia germanica. '92, 162. 



Ectobia lithophilia. '92. 1.58. 



Eburia quadrigeminata. '91. 25. 



Eels of Ameriea.and Europe. "91, 24. 



Eel question, development of the Conger eel, 

 '00. 165. 



Effect of environment on mass of local spe- 

 cies. '93, 226. 



Effect of light on germinating spores of ma- 

 rine algae, '93. 237. 



