51 
of the Essex Institute. Essex County yields twenty-nine species 
belonging to sixteen genera. Mr. Robinson accepts the common 
explanation of the name of Onoclea sensibilis, ¢. e., that it quickly 
turns black after the first frosts, and finds it confirmed by his ex- 
perience. Mr. Robinson informs us that he had “two patches, 
six feet square in all, killed by the frosts the past winter, and a 
third patch only alive and no more. They were .planted in 1865, 
and have increased rapidly till now, producing typical and obtusilo- 
buta specimens by the quantity as they fancied.” Onoclea sensibilis 
has come down to us from ancient geological ages, and it is specially 
interesting to learn how it tares with us in these very juvenile his- 
toric days.—4. Field and Forest, devoted to general natural history, 
Bulletin of the Potomac-side Naturalist’s Club, Cuartes R. Dope 
Editor, Vol., I, Nos. 1-4, June—Sept., 1875, (pp. 1-32.) The Club 
is not a new institution but this is its first appearance in print, 
though “among its members are enrolled not a few whose names 
are household words in scientific circles.” In the introductory 
Greeting, by Dr. Elliott Coues, we are given in a few words a 
model of a quiet association for sympathy in the study of natural 
history. “ Without machinery to get out of order—without even an 
officer excepting the Secretary—the Club has pursued its even way, 
uneventful indeed and certainly unobtrusive, but never without in- 
terest tor those in sympathy with its objects.” The present enterprise 
is “ undertaken by an indvidual with the cordial endorsement” of 
the Organization. Subscription price one dollar, payable in advance, 
J. C. Parker, News Agent, 527 7th St., Editor, P. O. Box, 273 
Washington, D. C. Prof. Chickering has discovered near Wash- 
ington anew locality for Hrythronium albidum, Nutt.—5. A List 
of the Marine Alge collected by Dr. Edward Palmer on the coast 
of Florida and at Nassau, Bahama Islands, March—August, 1874, 
by Daniel C. Eaton, New Haven, June, 1875.—6. Botanischer 
Jahresbericht, Systematisch geordnetes Repertorium der Botanisher 
Literatur aller Lander, von Dr. Leopold Just. This almost indis- 
pensable aid for working botanists may be obtained through B. 
Westerman & Co., New York. The two parts for 1873 have been 
published and that for 1874 is about ready. In the latter Dr. A, 
Minks of Stettin has charge of the Lichens, of which he records some 
300 new species, with diagnoses.—7. Darwin's Znsectivorous Plants, 
a master-piece, is republished in New York by D. Appleton & Co. 
§ 43. The Davenport Herbarium.—Mr. Geo. E. Davenport has 
transferred his valuable collection of Ferns to the Massachusetts 
Horticultural Society. He sends us a list of desiderata, and_so- 
licits contributions. Specimens may be sent to his address, 8 Ham- 
ilton Place, Boston, or to Mr. E. W. Buswell, Sec. Mass. Hort. Soc., 
Boston, and will be gratefully acknowledged and duplicates given 
in exchange if desired, ° —— 
Polypodium faleatum, Kel’g ; ? P. Californicum, Kaulf. 
Notholena candida, Hook. Ages : 
Cheilanthes aspera, Hook.; C. Lindheimeri, Hook.; C. Myrio- 
phylla, Desv. ? C. argenta, Hook.; C. Coopers, Eaton. 
Adiantum pilosum, Fée. 
