North American Check-List. 
Of the Numbered Check-list of North American Plants, but 
about 40 copies remain for sale. Those who desire a copy should 
write for it at once, as the edition will soon be exhausted, and | 
do not expect to reprint the list. One style only, the mailing list 
on light paper. Price, 75 cents. Address, 
H. N. PAT’TERSON, 
OquaAVWKA, ILL. 
Texican Plants for Sale. 
Having decided to limit my herbarium to the species growing 
north of the Mexican boundary, I offer for sale my Mexican speci- 
mens, including a set of the exclusively Mexican species of 
Pringle’s collections of 1885 to 1893. Fine specimens, about 1,700 
numbers, nearly one-fourth new species. For particulars, address, 
H. N. PATTERSON, 
OquaAWwKA, ILL. 
Cambridge Botanical Supply Co. 
Successors to all Business in Botanical Supplies in 
CAMBRIDGE, MASS., 
DEALERS IN 
Herbarium and Laboratory Materials and Ap- 
paratus, Microscopes, Books, Specimens, 
Everything Useful to Botanists. 
%* SATISFACTION GUARANTEED. *¥ 
WILLIAM WALES, Fort Lee, N. J. 
MANUFACTURER OF 
FIRST-CLASS MICROSCOPE OBJECTIVES. 
MICROSCOPES FURNISHED OF ALL MAKES—ZENTMAYER’S Al 
WAYS ON HAND, INSTRUMENTS ORDERED IN NEW 
YORK CITY SENT ON APPROVAL. 
DISCOUNT TO COLLEGES. 
