216 FST CHE. 
ADVERTISEMENTS 
should reach the editors by the roth of fhe 
month preceding the one in which they are 
to appear. 
MANNS CATALOGUE OF PLANTS. 
Catalogue of the Phzenogamous Plants of the 
United States, east of the Mississippi, and of the 
Vascular Cryptogamous Plants of North America, 
north of Mexico. 2d ed. 
The recognized standard exchange list. 
Each species bears the same numero as in the 1st 
ed., so that the 3824 numeros serve to designate the 
respective species. Price: 35 cts.; 3 for $1.00; 13 
for $3.00; sent free by mail. 
B: PICKMAN MANN, 
Cambridge, Mass. 
TORTRICIDAE WANTED. 
I am desirous of obtaining as many North Ameri- 
can TORTRICIDAE as possible, for the purpose of 
studying this family. I shall be glad to name and 
return any TORTRICIDAE forwarded to me for this 
purpose, save such as may prove new and desirable 
to retain for description. 
Pack carefully, and direct to 
PROF. C. H. FERNALD, Orono, Me. 
CANADIAN ENTOMOLOGIST. 
Edited by William Saunders. 
Published monthly. The volume for 1881 is the 
1sth. Price $1.00 per annual volume (together with 
the Annual Report of the Entomological Society of 
Ontario). Address remittances to 
E. BAYNES REED, London, Ontario. 
BULLETIN of the BROOKLYN ENTOMO- 
LOGICAL SOCIETY. 
Edited by F. G. Schaupp. 
Published monthly. Price, $1.00 per annual vol- 
ume. Address remittances to the Editor, 
9 Broadway, E. D., Brooklyn, N.Y. 
PAPILIO. 
Devoted to Lepidoptera exclusively. 
Edited by a committee. Published ten times in 
the year. The volume for 1881 is the ist. Price, 
$2.00 per annual volume. Address remittances to 
Mr. HENRY EDWARDS, 
185 East 116th St., New York, N.Y. 
hg European exchanges and communica- 
tions will receive more immediate attention 
by being addressed to 
GEORGE DIMMOCK, 
Leipzig, Germany. 
LEPIDOPTERA. 
Living cocoons, pupae and ova of American Lep- 
idoptera bought or exchanged for other species, by 
Monsieur ALFRED WAILLY, (Membre-Lauréat de la 
Société d’Acclimatation de France), 
Ito Clapham Road, London, S. W., 
England. 
DIMMOCK’S SPECIAL BIBLIOGRAPHIES. 
No. 1. THE ENTOMOLOGICAL WRITINGS OF 
JOHN L. LECONTE. Compiled by Samuel Hen- 
shaw. Edited by George Dimmock. Nov. 1878. 
I1p.ti1g X 12.5. Price, 30 cents; on 5 X 12.5 title- 
slips, $1.25. 
No. 2. THE ENTOMOLOGICAL WRITINGS OF 
GEORGE H. HORN. Compiled by Samuel Henshaw. 
Edited by George Dimmock. Jan. 1879. 6 p.t I9 
X 12.5. Price, 20 cents; on 5 X 12.5 title-slips, 50 
cents. 
No. 3. THE WRITINGS OF SAMUEL HUBBARD 
SCUDDER. Compiled and edited by George Dim- 
mock. Aug.1879. 28 p.tI9 X 12.5. Price 50 cents. 
Address EDITORS OF PSYCHE, 
Cambridge, Mass. 
NORTH AMERICAN FERNS. 
Check-lists of the Ferns of North America north 
of Mexico, enumerating 31 genera, 132 species and 
I5 varieties, on one octavo page. Will be sent by 
mail on receipt of the price, 15 cents per dozen 
copies. 
S. STEBBINS, Springfield, Mass. 
COCCIDAE WANTED. 
The undersigned is desirous of obtaining, by ex- 
change or otherwise, specimens of as many species 
of the COCCIDAE as possible, for the purpose of 
making a study of the North American forms. Those 
found infesting cultivated plants especially desired. 
Living specimens preferred when they can be ob- 
tained. J. HENRY COMSTOCK, 
Department of Agriculture, 
Washington, D.C. 
No. 84 was issued 18 Aug. 1881. 
