1. Sandusky Flora. pp. 167. E. L. MOSELEY 60 cts.
2. The Odonata of Ohio. pp. 110. DAVID S. KELLICOTT 60 cts.
3. The Preglacial Drainage of Ohio. pp. 76. W. G. TIGHT,
J. A. BOWNOCKER, J. H. TODD and GERARD FOWKE 50 cts.
4. The Fishes of Ohio. pp. 105. RAYMOND C. OSBURN 60 cts.
5. Tabanidæ of Ohio. pp. 63. JAMES S. HINE 50 cts.
6. The Birds of Ohio. pp. 241. LYNDS JONES 75 cts.
7. Ecological Study of Big Spring Prairie. pp. 96.
THOMAS A. BONSER 50 cts.
8. The Coccidæ of Ohio, i. pp. 66. JAMES G. SANDERS 50 cts.
9. Batrachians and Reptiles of Ohio. pp. 54. MAX MORSE 50 cts.
10. Ecological Study of Brush Lake. pp. 20. J. H. SCHAFFNER,
OTTO E. JENNINGS, FRED J. TYLER 35 cts.
11. The Willows of Ohio. pp. 60. ROBERT F. GRIGGS 50 cts.
12. Land and Fresh-water Mollusca of Ohio. pp. 35. V. STERKI 50 cts.
13. The Protozoa of Sandusky Bay and Vicinity. F. L. LANDACRE 60 cts.
14. Discomycetes in the Vicinity of Oxford, Ohio. pp. 54.
FREDA M. BACHMAN 50 cts.
15. Trees of Ohio and Surrounding Territory. pp. 122.
JOHN H. SCHAFFNER 75 cts.
16. The Pteridophytes of Ohio. pp. 41. JOHN H. SCHAFFNER 50 cts.
17. Fauna of the Maxville Limestone. pp. 65. W. C. MORSE 60 cts.
18. The Agaricaceæ of Ohio. pp. 116. W. G. STOVER 75 cts.
19. An Ecological Study of Buckeye Lake. pp. 138.
FREDERICA DETMERS 75 cts.
Address: C. W. REEDER, Librarian, Ohio Academy of Science.
Library, Ohio State University, Columbus, Ohio.