With the Eleventh Annual Report are published, under sepa- 
rate covers, three ‘‘ Special Papers,’’ as follows : 
Special Papers—No. 5. ‘‘Tabanidae of Ohio.” 
With a catalogue and bibliography of the species from America 
north of Mexico. By JAMES S. HINE. 
Special Papers—No. 6. “*The Birds of Ohio.” 
A Revised Catalogue. By LyNpDs JONES, M. Sc. 
Spdcial Papers—No. 7. ‘‘ Ecological Study of big Spring Prairie.” 
By THomas A. BONSER. 
