212 



INDEX. 



Iowa City, the scydmainidaj and psela- 



phicia^ occurring at, 60. 

 Iowa, eleodesof, 59. 

 Iowa Geoiogical Survey, reports referred 



to, 197, 198. 199. 



Jennf r, Dr. Edward, cited, 201. 

 JuglandaccEe of Hamilton county, Iowa, 

 208. 



Kansan drift in Hamilton county, Iowa, 



205. 

 Kellerman, Professor, cited, 180, 181. 

 Keyes, O R , genesis of normal compound 



and normal horizontal faulting, 112. 

 On formational synonomy of the coal 

 measures, etc., 82. 



Terraces nf the Nile valley. 111. . 

 King, quoted, 86. 

 Klebs, Dr. Edwin, cited, 200. 

 Klebs-Lotffler bacillus, 199. 



Liavoisier, referred to, 23, 24. 

 Leguminosaj of Hamilton county, Iowa, 



207. 

 Lichens, distribution in the Mississippi 



valley, 173. 

 List of species and varieties. 174. 

 Light, corpuscular theory of, 26. 



Diffraction of, 26. 



Law nf reflection and refraction, 25. 



Polarization discovered, 26, 



Wave theory of, 26. 



Macbride, Professor, cited, 198, 199. 

 Marcou quoted, 90, 91, 93. 

 Meek quoted. 91, 93. 

 Members, associate, list of, 8. 



cnrresDonding, list of, 9. 



elected, 13. 

 Mildew, powdery of the apple, 177. 

 Mississippi valley, additions to lichen 



distribution in the, 173. 

 Mueller, H. A., trees and shrubs of Ham- 

 ilton county, Iowa, 204. 



Necrology, committee appointed on, 15. 

 Nile valley, terraces of the. 111. 

 Nuttirg, 0. O , the new school of animal 

 psychology, 40. 



OflBcers elected. 13. 

 Orchidaceaj of Iowa, 187. 

 Osmosis, discovery of, 32. 

 Owen, quoted, 86, 90. 



Pammel, L. H.. cited, 17. 18, 20, 162, 174. 

 Powdery mildew of the apple, 177. 

 Quince fruit with an immense num- 

 ber of seeds, 182. 

 Papers presented, 15. 

 Physics, antiquity of the science, 25. 

 Physiography, a study by S. Calvin, 72. 

 Pile, electric, invented. 29. 

 Podosphera oxyacantha?, 178, 179, 180, 181. 

 Prairies, origin of, 48 et seq. 

 Excess of moisture, 50. 

 Fires of, 49. 

 Geological formation and soils of, 



52. 

 Insufficient moisture of, 50. 

 Temperature, 51. 

 President, address of, 22. 

 Priestley, oxygen discovered by, 23, 24. 

 Proust and definite proportions, 24. 

 Psychology, new school of, 40. 

 Pyrus angustifolia, 23, 125. 



coronaria, 123, 125, 126, 127, 128. 



cydonia, 182. 



diversifolia, 124. 



fusca, 124. 



lowensis. 123, 124. 128, 130, 137, 138. 



malus, 130, 133, 137, 1-38. 



sempervirens. 125. 

 Soulardi, 130. 133. 

 suaveoleus, 126. 

 subcordata. 124. 

 rivularis, 123, 124. 



Quince fruit with an immense number of 

 seeds, 183. 



Rafinesque, Professor, quoted, 190. 

 Report uf the secretary, 11. 

 Report of the treasurer, 12. 

 Reproduction, theory of, 30. 

 Roemer and the velocity of light, 25. 

 Romanes, quoted, 46. 



Salisbury, R. D., quoted, 13, 1.5, 16. 

 Salix, the genus in Iowa, 141. 

 Species described: 



amygdaloldes, 144. 



bebbiana, 147. 



Candida, 150. 



cordata, 151. 



discolor, 147. 



fluvlatilis. 145. 



humilis. 148, 



lucida, 145. 



Missouriensis, 1.52. 



myrtelloides, 153. 



petlolarls. 150. 



seriacea, 149. 



trlstis, 148. 

 Schlaback, O E., biography of, 20. 

 Science a hundred years ago, some fea- 

 tures of, 23. 

 Secretary, report of, 11. 

 Shimek, B., on the distribution of forest 



trees in Iowa, 47. 

 Skunk river, course of in Hamilton 



county, Iowa. 204. 

 Snell, discoverer of refraction, 25. 

 Soulard, J G., mentioned, 133. 

 Swallow, quoted, 84, 85, 88. 



Temperature of baking bread, 170. 

 Terraces cf the Nile valley. 111. 

 Thermometer, invention of, 26. 

 Thermoscope, invention of, 35. 

 Thorndyke, Dr. Edward L., quoted, 40 et 



seq. 

 Torrey, Dr., quoted, 190. 

 Treasurer, report of, 12. 

 Trees and shrubs of Hamilton county, 



Iowa. 208 

 Trelease, Dr. Wm., cited, 179, 183. 



Vandivert, Harriet, and Alice Hess, bas- 



idioDiycetffi of central Iowa, 183. 

 Viburnum, the genus in Iowa, 197. 



Wall lake, drainage of, 78. 

 Explanation of, 80. 

 Natural riprapplng of, 81. 

 Observations on, 77. 

 Topography of, 77. 

 Weems, J. B., a study of the chemical 

 composition of some of the grasses 

 of the state, 113. 

 Werner, opinions of, 33. 

 Wickham. H. F., on eleodes of Iowa, 59. 

 scydm£eaida3 and pselaphldfe occur- 

 ring near Iowa City, Iowa, 60. 

 Wilder, F. A., observations in the vicin- 

 ity of Wall lake, 77, 

 Wisconsin drift in Hamilton county, 

 Iowa, 205. 

 Drainage of, 54. 

 Topography of, 48. 

 Wood, Professor, quoted, 189. 



Yeast, Fleischmann's compressed, 172. 

 foam. 172. 

 wafers, 172. 



