235 



Olypta .<p.. 'Wl.'M. 



iJold, '93. liW. 



<}ol(len. Katherine E.. '91,92; '92. 37. 46; '93. 



235; '94, 61. 12(i; '95.46.92; '96. 184; '97, 62; 



'98. 189; '99.129.141; '00, 157. 

 ■Golden. M. J., '95,48. 100; '98. 80; '99, 77, 83. 

 ■Goldsboroiigh. W. E„ '95, 79; '96, 97. 

 Gordius. '92, 124. 

 Goss, W. F. M., '92, 24; '9.3. 271, 273: '94, 39; 



'95,75; '9(;. 59, 88; '98.147,149. 

 ■Grandeau's method, modification of, '92, 



166. 

 Grant beaver, '91, 26. 

 Grape sugnr. effect on bacteria, '95, 85. 

 ■Graphic methods in elementary mathemat- 

 ics, '00, 90. 

 Graphical solution of the higher equations, 



'91. 57. 

 Grasshoppers, black-legged. '92, 135. 

 ■Grasshoppers, black-sided. '92,125. 

 ■Grasshoppers, common meadow. '92, 130. 

 ■Grasshoppers, cone-headed, '92, 113. 

 Grasshoppers, green, '92. 92, 112. 

 Grasshoppers, lance-tailed, '92. 128. 

 •Grasshoppers, shield-back, '92, 150. 

 Grasshoppers, slender meadow. '92, 114. 

 ■Grasshoppers, spotted wingless, '92, 142. 

 Gravitational attraction. A. W. Duff. '95, 58. 

 Gray. Thos., '92, 20. 26; '93. 268, 269; '94.50; 



'97, 3;i. 

 Great lakes, '91, 29. 

 •Green, R. L.. '91, (>5. 

 Gregg, .1. C. '00, 91. 

 Grinnellia Americana, '92, 35. 

 ■Grosbeak, evening. '91, 16. 

 ■Grow th in the length and thickness of petiole 



of Richardia, '93, 235. 

 Gryllidae, '91, 126, 127, 128. 

 Gryllidae of Indiana, '91, 126. 

 Gryllidae, key to family, '91, 12. 

 Gryllotalpa, '91, 128. 129,130. 

 ■Gryllotalpa borealis, '91, 1.31. 

 ■Gryllotalpa brevipennis. '91. 130. 

 Gryllotalpa Columbiana. '91, 131. 

 Gryllotalpa longipennis, '91, 131. 

 Gryllus. '91. 128.132,133. 

 ■Gryllus abbreviatus, '91,130, 1.32, 1.37. 

 Gryllus luctuosus, '91, 133. 

 •Gryllus Pennsylvanicus, '91, 134. 

 Guaymas, fishes of, '91, 23. 

 Guillemot, Brunnich's, '97, 180. 

 Gyroscope, the bicycle wheel as a. '00, 91. 



HABITS OF TURTLES, '93,224. 

 Hadenoecus cavernarum, '92, 153. 

 Iladley, Aiden H., '97,18:5. 

 Haemaglobin, '95, 106. 



ll;jiacii. brcediiisliabits. etc.. of, "9]; 120. 



Ilalids. vapor densities, '91,14. 



Hamilton (^ounty, flora of, '94. 156. 



Hansen. George, '98, -239. 



Harbor at the south end of Lake Michigan, 



'00, 83. 

 Hathaway, A. S.. '91, 57. 63, ()5; '92, 20; '96, 85; 



'97. 117; '98, 88. 

 Hatt. W. K., '96, 68. 88, 97; '97, 130, 1.31; '98 



157. 

 Hay, 0. P., '91, 32. 10(5, 120, 144; '92, 62, 72; '93, 



68, 69. 

 Hay. W. P., '91, 147; '92, 94, 144; '93, 69. 

 Heacock, E. H., '94, 120. 

 Heat, effect of, on muscle, '95, 108. 

 Heating effects of coals, '96, 115. 

 Height of the atmosphere, '91. 29. 

 Heiney, W.N. '00,197. 

 Heloderma suspectum, '91, 152. 

 Henry County flora, '91, 26. 

 Henry County prehistoric earth w<(rks, '91, 



98. 

 Hepaticae, '93, 64. 



Herbaceous plants, seedlings of. '99, 116. 

 Herpestomus plutellae, '92,90. 

 Heronries, '97,198. 

 Hessler. Robert, '92,89; '93,258; '96,116; '97, 



65; '( 0, 74. 

 Heterodon platirhinos, breeding habits, etc. 



of, '91,114. 

 High schools, relation of. to biological sur- 

 vey, '93, 199. 

 Histeresis curves, '91,65. 

 Hoffmanseggia, the genus, '91, 29, 79. 

 Hognosed snake, breeding habits, etc., of, 



'91,114.118. 

 Holostomidae, '9(5,224. 

 Holtzman.C. L., '91,79. 

 Homoporus sp., '92,91. 

 H()pkin.s seaside laboratory, '95, 45. 

 Host plants, additional list of, '94, 1.53. 

 House boats for biological work, '99, 75. 

 Hoy's white fish, or moon-eye, rediscovery 



of, '94, 103. 

 Hubbard, (ieo. C, '91,77. 

 Hubbard, . J. W., '92,63. 

 Hudson River or Cincinnati group, e.xtent of, 



'91,68. 

 Hudson River deposits, '92, 26. 

 Hudson River, location of upper limits of, 



'91,(59. 

 Hudson River. Owen, Prof. Richard, views 



of, '91.(59. 

 Humus in soils. '92, 1(56. 

 Huston, H. A., '91,55,57; '92,16(5, '91,51,52; 



'96, 104, 112. 

 Hydra fusca, '91, 21. 



