232 



Curtis. (!eo. L., '9(1,25(1. 



Curtiss.R.G., '98, 202. 



Cu.scuta, distribution o", '98, 214. 



Cu.«cuta. scales of, '98. 212. 



Cyjinogen, '97, 98. 



Cyanoi)hyoea3. cell structure of, '91,13^. 



Cyeas. stomates of, '93, 2.")4; '94, VM). 



Cyclic quadralateral, '00. 91. 



Cymatogastcr, aberrant follicles in ovary, 



'98. 229. 

 Cymatogastcr, development of sexual organs 



of. '94, 138. 

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

 Cypreijcdium. poisonous influence of some 



species of, '9kl.T). 

 Cyprei)ediuui spectabile, poisonous effects 



of, '93, 254. 

 Cypess swamps of Knox County, '97, 172. 

 Cyprinodon, '91, 19. 

 Cyrtophyllus, '92, 109. 

 Cyrtophyllus concavus. '92, 108, 109. 

 Cyrtophyllus perspicillatus, '92, 110, 152. 



DAIHINIA,'92, 92. 



Davis, B. M., '95. 45; '96. 259, 2G0. 



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



Davis, Sherman, '91, 49; '93, 262. 265; "96, 115. 



Davisson, S. C. '00, 99. 



Dead animal tissue, absorption uf 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 paehymerus, '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, 135; '95, 44, 95; '97, 68; '98, 

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



Denny, W. A., '98, 252. 



Desmids of Crawfordsville, '98, 163. 



Detection of hydrocyanic acid, '93, 2(')'i. 



Detection of strychnine in exhumed limly, 

 '93, 267. 



Determination of valences, '92, 169. 



Development of Etheostomacacruleum, pre- 

 liminary account of, '94, 1.35. 



Development of sexual organs of Cymato- 

 gastcr, '94, 138. 



Development of vivaparous fishes of Cali- 

 fornia. '91.1.59. 



Dextrose, action of airniKHiia uiion, '94, 51. 

 Itiaeretus Americanus, '92, 90. 

 Diaeretus bruniventris, '92,90. 

 Diaeretus websteri, '92, 90. 

 IMagrams from iron and steel, '91,20. 

 1.4 Diamino-cyclohexane, '93,266. 

 Diamond fluorescence, '99,94; "(Ml, 1(13. 

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

 I'i-benzyl carbinamine, '91, 27,28. 

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

 Dietyola,the centrosome in, '98,166. 

 I»iemyetylus viridescens. Hay on, '91. 144. 

 I>iiferential invariants, '98,135. 

 I»igestibiliry of the pentose carbohydrates, 



'91,57. 

 Dimeris rufipes, '92, 89. 

 Diphenylselenon, '9(i, 114. 

 Diplodus, '91, 1-t. 

 Diplosis tritici. '92, 92. 

 Dip of the Keokuk rock at Bkximington, '94, 



52. 

 Diptera, reared in Indiana, '98,224. 

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

 Distribution of Gleditschia triacanthos and 



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

 Dolan, .J. P., '95, 2.35; '96, 279. 286. 

 Dolichonyx oryzivorus, '91,l(i7. 

 Dorner, Herman, '99, 116. 

 Doryphora, 10— lineata, '92, 84. 

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

 Drill 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. Wilmer, '95, .58, 77, 83, 84; '96, 97; '97, 



84,89,90; '98,82,84, 8.5. 

 Dynastes tityus, '92,86. 



EAGLE LAKE. '96. 296. 



Earthworks, ancient, near Anderson. Ind., 

 '92. 3(|. 



Earth<iuake center, '91. 30. 



Earthquake, the Charleston. Mo., '95, 51. 



Ectobia, '92,155,161. 



Ectobia flavocineta, '92, 161. 



Ectobia germaniea, '92, 162. 



Ectobia lithophilia, '92, 1.58. 



Eburia (juadrigeminata, '91, 25. 



Eels of America and Europe, '91, 24. 



Eel question, development of the Conger eel, 

 '00. 165. 



P^ffect of environment on mass of local spe- 

 cies, '93, 226. 



Effect of light on germinating spores of ma- 

 rine algae. "93. 237. 



