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—OF THE— 
Microscopical Bulletin, 
A bi-monthly journal devoted to Microscopy, and allied sciences. Its articles 
are practical and to the point. Contains frequent articles and notes of botan- 
ical interest. 
SAMUEL Lockwoop says: ‘It is an interesting magazine, and the judgment 
shown in selecting is admirable.” 
JAMES W. QUEEN & CO., 
OPTICIANS 
PHILADELPHIA. 
Howell's Pacific Coast Plants 
(NEW SETS FOR 1887} 
WILL BE READY NEXT AUTUMN. 
CATALOGUE OF THE FLORA OF OREGON, WASHINGTON AND 
IDAHO. PRICE, 25 CENTS. 
Sent postpaid on receipt of price. 
iulae coat HOWELL, 
yHUR, OREGON. 
R. FRIEDLANDER & SOHN, Natural History Booksellers, 
Berlin (Germany) N. Ws Cartstr. 11, 
are publishing, since 1879, every fortnight: 
Naturae Novitates: Natural History News- 
Bibliographi te List of the Current Literature of all Nations om Natural History 
and Exact Sciences. 
on 
Pree $i per year (25 Nos.) post-free. nine gratis on applicati 
1886, eighth year of pr 
Back-volumes, each complete with ee still to be 
