HYBRIDIZATION 



To investigators in this line we offer opportunities for cross-breeding Mexican 

 Species of Attacus with domestic. 



Cocoons of A. orizaba, A. Jorulla, Automeris budleyi, ^12.00 per 100. 

 Attacus calleta $20.00 per 100. 



Also 100,000 Specimens of South American and Mexican Lepidoptera in 

 series of 100 $5.00 to $10.00 



Write for particulars stating your specialty. 



THE SYDNEY ROSS CO., 

 IMPORTERS. 

 SHOW ROOM, 

 816 Broadway, O. Fulda, Manager. 48 Vesey Street, NEW YORK. 



THE OHIO NATURALIST. 



A journal devoted more especially to the natural history of Ohio. The official 

 organ of The Biological Club of the Ohio State University, and of The Ohio 

 State Academy of Science. Published monthly during the academic year, from 

 November to June (8 numbers). Price $1.00 per year, payable in advance. To 

 foreign countries, $1.25. Single copies, 15 cents. 



The first three volumes may still be obtained at the former subscription price 

 of fifty cents per volume. 



Remittances of all kinds should be made payable to the Managing Editor, 



J. S. HiNE. 



Address, THE OHIO NATURALIST, 



Ohio State University, COLUMBUS, OHIO. 



WANTED 

 UNMOUNTED COLEOPTERA 



FROM ANY PART OF NORTH AMERICA. 

 MUST BE IN GOOD CONDITION AND 

 WELL LABELED WITH LOCALITY AND 

 DATE OF CAPTURE. 



FRED C. BO^A/'DITCH, 164 Rawson Road, BROOKLINE, MASS. 



