244 



Sew:i?o pollution of rivers, method of de- 

 termining. 'iU. 40. 

 ■ Sexuiil organs, development of. in Cyniato- 



gaster. '94. 1?^. 

 Shaaf. Albert. '(W. 179. 181 . 

 Shaft friction. '9(5. 79. 

 Shannon. W. P.. '92. 49 ; '94, 53, 1U7, 130 ; '%. 



t>5. 271. 

 Sharp. I. W., -94. .3:3. 

 Shaw. .Tames Byrnie. '95, 59. 

 Shelby County earthquake. '91. 27. 



Shell, a gorget. 'fKi. 81. 



Shell mound, a Florida. '94. 48. 



Shepherd, J. W.. '98. 160 ; '99. %. 



Shrew.«, Indiana. '91. 1(51. 



Silurian. '93. 185. 



Silurian section? in Eastern Indiana, corre- 

 lation of, '94. -54. 



Silvanus surin amensis, '92, 91. 



Simulium meredionale. '91. 158; '92, 87. 



Simuliuni pecuarium. '91.1-58; '92,87. 



Siphonophora avenal. "92. 90. 



Siphonophora, cucurbitaphidis. '92. 90. 



Siphonophores, "91. 28. 



Sistrusus. breeding habits, etc.. of. "91. 109. 



Skew surfaces, third and fourth degree. '95, 

 57. 



Slick. E.E.. •92.91.117. 



Slonaker, J. R.. "9(5. 3()4 : '98. 253; '99. 1415; 

 ' 00. 1(57. 



Slopes, weathering of north and south. '99. 

 167. 



Smart. R. A.. '00. 100. 



Smith. Alex.. '91. 4(5. 48 ; '93. 266. 



Smith. C. E.. '98. lOl. 



Smut, experiments with. "00, 123. 



Snake cactus. "91. 18. 



Snakes, breeding habits of. "91, 106. 120. 



Snakes of Turkey Lake. "95. 2(51. 



Snow. Benj. W., "92, 20, 25. 2(5. 



Snow pumping engine, performance of, '98, 

 147. 



Snyder. Lillian. '97. 150 ; "98, 186 ; '96, 216. 



Soap analysis, "91, 28. 



Soils, humus in, '92, 166. 



Soil solvents. '%, 104. 



Solidago, '91, 25. 



Solidago rigida. '92. 139. 



Some evolution among cacti, '93, 2(52. 



Some new Indiana fossils. '94, 54. 



Some new laboratory appliances in chemir^- 



. try, '94, 51. 



>3omc queries relative to Solanum dulca- 

 mara, '93, 232. 



Some suggestions to teachers of science or 

 mathematics in high schools. '91. 51. 



.Somers, A. X., '92. 29. 35. .51. 



Sorghum sugar. '91, 31. 



Sound. proi)agation of, etc., '98, 82. 



Sounds, decrease of intensity, '97, 84. 



Sounds, intensity of telephonic. '98, 84. 



South American cat fishes. '92. 72. 



South American Characinidae, '93, 226. 



Special senses of plants, the, '93, 205. 



Species. descrii)tion of. '91. 14. 



Spectrum of cyanogen. '97. 97. 



Spectrum of electric arc, '97, 95. 



Sphagnaceae, '93, (57. 



Sphyraphieus varius, '91, 1(57. 



Spinal cord, functions of. from clinical 



study. '94. 35. 

 Spirogyra, '91. 18. 



Sporangium of Botrychium. '91. 79. 

 Spreading adder, breeding habits, etc., of, 



•01. 114. 

 Spring meetings— see field meetings. 

 Spy Run creek, abandoned meanders of, '00, 



181. 

 Spy Run and Poinsett Lake bottoms. '00, 173. 

 Squeteague. life history of. '00, 1(5(). 

 Stagmomantis Carolina, '92, 86. 

 Staining in toto of heads of Yernonia, 



method of. '94. 120. 

 Starches, susceptibility of. '97. 74. 

 Starch in cereals, '91. Si). 

 State biological .survey, report of progress of 



botanical division. '94. 66. 

 State flora, list of additions to. '94, 147. 

 State library, botanical literature in. '95,102. 

 Station, biological, a new, and its aim, '94, 



34. 

 StaufiFer. E. P.. '95. M. 

 Steamer "Albatross." '91, 20. 

 Steam pipe, value of, in smoke-box of the 



locomotive. '93. 271. 

 Stellerida, '91, (58. 

 Stenopelmatinae. '92, 96. 140. 

 Stereoisomerism, of the hydrazoins of ben- 

 zoin, '93. 2(56. • 

 Stevens. M. C. '98. 147. 

 St. Joseph and Kankakee at South Bend, 



'98. 270. 

 St. Lawrence, the, angling in, '94. 81. 

 Siomata developed by phylloxera, '91, 76. 

 Stomates of Cyeas, '93. 2-54 ; '94. 130. 

 Stone, building, '93, 170. 

 Stone. W. E., '91, 57 ; '92, 165,168, 1(39; '94, 51 ; 



'97.74." 

 Stoops, H. M., '92, 51, 55 ; '94. 58. 

 Storeria dekayi, breeding habits, etc., of, 



'91. 114. 

 Strains induced in plant curvature, meas- 

 urement of, '94, 130. 

 Strains in steam machinery, '95, 75. 



