THE OHIO LIBRARY COMPANY 
PUBLISH A FINE LIST OF NATURE BOOKS OF GREAT 
VALUE TO ALL NATURE LOVERS. 
No. I.—The Birds of Ohio. 
One and two volumes, illustrated with hundreds of Plates. 
Description, (Scientific and Popular) of 320 Ohio Birds. 
No. 2.—The Mammals of Ohio, in Press. 
The Extinct Mammals, The Existing Mammals, The Evolution of 
Domestic Mammals. 
Beautifully Illustrated with Original Pictures and Colored Plates. 
No. 3.—The Mushroom Book, by Miron E. Hard. 
Over 700 Varieties Described and Illustrated. Far ahead of any 
other work on Mushrooms. Covers the entire United States. 
Ready in Spring of 1908. 
We also publish the Poems o f James Ball Naylor , 84 in number. No 
more beautiful gift book for holidays or birthdays has ever been issued. 
We equip both Public and Private Libraries with all the Standard Authors 
and Reference Works of all Publishers. Try us on any book you want. 
Send for Catalogue, Price List and Terms. 
THE OHIO LIBRARY COMPANY, 
12 >30 Savings and Trust Co. Bldg., COLUMBUS, OHIO. 
THE KNY-SCHEERER CO., 
404 West 27 th Street, NEW YORK, N. Y. 
DEPARTMENT OF 
Natural Science. 
C. LAGA1, Ph. D. 
Scientific Apparatus and 
Instruments, 
Chemicals, 
Anatomical Models, 
Natural History Specimens 
and Preparations, 
Wall Charts, Museum and 
Naturalists’ Supplies, 
Lantern Slides, Microscopes 
and Accessories, 
Division of Entomology. 
ENTOMOLOGICAL SUPPLIES 
AND SPECIMENS. 
North American and 
Exotic Insects, 
School Collections, 
Metamorphoses, 
Biological Models, 
Microscopical Preparations, 
Boxes, Cases, Cabinets, 
Forceps, Pins, Nets, 
Dissecting Instruments, 
Glass Tubes and Jars. 
RARE INSECTS BOUGHT AND SOLD. 
NEW CATALOGUE OF ENTOMOLOGICAL SUPPLIES AND CIRCULAR OF INTERESTING 
INSECTS ON APPLICATION 
When writing to advertisers, please mention the “Ohio Naturalist.’ 
