OUR HELPERS. 133 



C. R. Orcutt \_Pacific Coast}, San Diego, Cal. 



F. Leroy Sargent \Lichens\, University of Wisconsin, 

 Madison, Wis. 



W. H. Seaman, M.D., 1424 Eleventh St., Wash- 

 ington, D. C. 



Prof. William Trelease, Shaw School of Botany, St. 

 Louis, Mo. 



Prof. W. Whitman Bailey, 6 Gushing St., Provi- 

 dence, R. I. 



CHEMISTRY. 



Peter Collier, Washington, D. C. 



Prof. W T illiam Frear ^Agricultural Chemistry}, State 

 College, Penn. 



C. J. Lincoln, Aspinwall Hill, Brookline, Mass. 



S. P. Sharpies, State Assayer, 13 Broad St., Boston, 

 Mass. 



A. J. Sherman, 308 Walnut St., Chicago, 111. 



Prof. Charles S. Doggett, Walpole, Mass. 



CONCHOLOGY. 



Harry E. Dore, Portland, Oregon. 

 Thomas Morgan, Box 164, Somerville, N. J. 

 Andrew Nichols, Jr., Asylum Station, Mass. 

 C. R. Orcutt ^Pacific Coast}, San Diego, Cal. 



G. H. Parker, Divinity Hall, Cambridge, Mass. 

 Prof. D. Bruce Richards, 1726 N. i8th St., Phila- 

 delphia, Penn. 



ENTOMOLOGY. 



H. F. Bassett [ Gall- Flies'] , Silas Bronson Library, 

 Waterbury, Conn. 



A. W. Putnam-Cramer [Lepidoptera], 308 Macon 

 St., Brooklyn, N. Y. 



Prof. C. H. Fernald [Small Moths], Amherst, Mass. 



Prof. Leland O. Howard, Dept. Agr., Division of 

 Entomology, Washington, D. C. 



