INDEX 
A Pre-Kansan peat bed, 63. 
Additional observations on the surface 
deposits in Iowa, 68. 
Anatomical study of the leaves of some 
species of the genus A.ndropogon, 133 
AndropogOQ, anatomical study of the 
leaves of, 133. 
Anatomical study of the leaves of Era- 
grostis, 138. 
Aquatic plants from northern Iowa, notes 
on, 77. 
Ball, Garleton E. , article by, 138. 
Ball, E. D,, ariicle by, 334. 
Ball, E D., and Osb rn, H., article by, 173. 
Biological station, Illinois, 167. 
Brain, nerve cells of the shark’s, 151. 
Bromus, study of leaves of, 136 
Bromus, a study of the leaf anatomy of 
some species of, 119. 
Calvin, S., article by, 16. 
Cherokee shales, 33. 
Oladocera, some Manitoba, with descrip- 
tion of one new species, 154. 
Oladocera of Iowa. Brief notes and new 
species of Daphnia, 163. 
Comparative study of the leaves of Lol- 
ium, Festuca and Bromus, 126. 
Contrioutions to the hemipterous fauna 
of Iowa, 173. 
Orepidoderacucumerls, probable life his- 
tory of, 170. 
Daphnia, new species of, and brief notes 
on other Oladocera of Iowa, 163. 
Deltocephalus, review of the genus, 195. 
Drifo section at Oelwein, 54. 
Eragrostis, anatomical study of the 
leaves of, 138. 
Evidence of a sub-\ftonian till sheet in 
northeastern Iowa, 50. 
Festuca, study of the leaves of, 136. 
Financial statement, 13. 
Finch, Grant E., article by, 54. 
Fink, B , article by, 81. 
Fitzpatrick, T. J., article by. 108. 
Flora of Fayette, Iowa, Spermaphyta 
of, 81 
Flora of the Sioux quartzite in Iowa, 73. 
Formaldehyde, uses of in animai mor- 
phology, 147. 
Gas, natural, in the drift of Iowa, 41. 
Hemipterous fauna of Iowa, contribu- 
tions to, 173 0 
Henrietta limestone, 33. 
Houser, Gilbert L , articles by, 147, 151. 
Jllinois Biological station, 167. 
Introduced plants of iowa, notes on, 110. 
Oassldae, life histories of, 17.3 
Keyes, C. R , article by, 23. 
Keyes, c. R., and Rowley, R. R , article 
by, 36. 
Leonard, A. G , article by, 41, 
Letter of transmittal, 3. 
Life histories of Jassidae, 173. 
Lolium, study of leaves of, 136. 
Macbride, T. H., article by, 63. 
Madison county, results of recent geolog- 
ical work in, 47. 
Manitoba Oladocera, 164. 
Mechanism for securing cross-fertiliza- 
tion in Salvia lanceolata, 109. 
Membershio of the Academy, 7. 
Memorial of Charles Wachsmuth, 13. 
Natural gas in the drift of Iowa, 41. 
Mew or little known plants, 108. 
Nerve cells of the shark’s brain, 151. 
Newton, G. W., article by, 109. 
Notes on aquatic plants from northern 
Iowa, 77. 
Notes on some introduced plants of 
Iowa, 110. 
Officer s of the Academy, 5. 
Orthopterous fauna of Iowa, notes on, 334. 
Usborn, H., and Ball, E. D., article by, 173. 
Pammel, Emma, article by, 136. 
Pammel, L. H , article by, 110. 
Peat bed, Pre- Kansan, t3. 
Plants, new or little known, 108. 
Pleasanton shales, 34 
Pre-Kansan peat bed, 63. 
Probable life history of Crepidodera 
cucumeris, 170. 
Recent geological work in Madison 
county, results of, 47. 
Report of secretary-treasurer, 13. 
Results of recent geological work in Mad- 
ison county, 47. 
Ross, L. S., articles by, 154. 163, 167. 
Rowley, R. R., and Keyes, O, R , article 
by, 30. 
Salvia lanceolata, mechanism for secur- 
ing cross-fertilization in, 109. 
Fecretarv-treasurer, report of, 13 
Shark’s brain, the nerve cells of, 151. 
Shimak, B , articles by, 6-1, 73, 77. 
Sioux quartzite in Iowa, flora of, 73. 
Sirrine, Etnma, article by, 119. 
Sirrine, F. A., article by, 170. 
some Manitoba Oladocera, with descrip- 
tion of one new species, 154 
Spermaphyta of the flora of Fayette, 
Iowa, 81. 
Stages of the Des Moines, or chief coal- 
bearing series of Kansas and south- 
western Missouri, and their equiva- 
lents in Iowa, 23. 
State quarry limestone, 16. 
Study of the leaf anatomy of some species 
of the genus Bromus, 119. 
Sub-Aftonian till sheet in northeastern 
Iowa, evidence of. 58. 
Summary of discussion, 66. 
Surface deposits in Iowa, additional 
observations on, 68. 
Tilton, J. L., article by, 47. 
Transmittal, letter of, 3. 
Uses of Formaldehyde in animal mor- 
phology, li7. 
Vertical range of fossils at Louisiana, 36. 
Wachsmuth, Charles, memorial of, 13. 
Weaver, C. B., article by, 133. 
