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 one the mailing list 
on light paper. Price, 75 cents. Address, 
H. N. PATTERSON, 
Ogu aAMUrIC A, Tua. 
‘ew ES ANNUAL CATALOGUE 
OF THE 
Vienna Botanical Exchange Society 
Will be issued in December. It will contain about 4,000 names of spe- 
cies, forms and hybrids for exchange or sale, some of which have never 
been offered in“any similar publication. The number of new species 
offered is large. It may be obtained gratis by addressing the undersigned, 
T. DORFLER, 
ee TS Bo vvencrasee: ceo 
Genus Labels for Cryptogams. 
SAMPLE: 
163. FUSICLADIUM 
The numbers indicate the Systematic Arrangement as based o 
n Standard Works. 
The entire series at 15¢ per 100, or Special Groups at Special Prices. _ 
Cambridge Botanical Supply ©o., 
CAMBRIDGE, MASS. 
WILLIAM WALES, Fort Lee: N. js 
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. 
