336 Proceedings of Scientific Societies. [March, 18%, 
e 
amoeboid movements, although the cilia of the creature continued 
active. A bud then appeared in the ectosarc, which was followed 
by the endosarc, and grew until the original form was attained, 
Rev. Dr. McCook spoke of the architecture of Formica rufa, a 
displayed in Dakota. This ant is European, but occurs also on 
the plains, even to the elevation of Leadville. It is not foundon 
the Atlantic sea-board. 
BIOLOGICAL Society oF WasxHincTon.—The fourth anniver 
sary meeting was held on Friday evening, January 25th. The 
President, Professor Charles A. White, delivered the annual at 
dress upon; “ Certain phases in the geological history gie 
North American continent, biologically considered.” 
New York Acapemy oF Sciences, Jan. 7.—The 
the evening was:.Notes and criticisms on Mr. Grant Alt 
theory of the origin of leaf-forms (illustrated with specimens) r | 
r. Ñ. L. Britton. 
Jañ 14.—The following papers were read : The sor 
of glacier ice, and its influence on the topography of 
America, by Dr. John S. Newberry ; “ Field-work in local mit | 
eralogy, by Mr. B. B. Chamberlin. 
Bot. x —The following paper was read: Methods of a | 
self- defence (illustrated with lantern), by Professor H. Le r 
Jan. 28—Professor J. W. Powell, of Washington, | 
livered a lecture on: The mythology of the Indians i 
mento valley. 
American GEOGRAPHICAL SOCIETY, Jan. 24.—The n 
the evening was on the exploration of Petra-Arabia, r 
L; Wilson, Ph.D., illustrated with views. 
Garman ipokee on the “sea-serpent,” itd sige gies 
new Selachian. Mr. W. O. Crosby discussed the relation” 
slates and conglomerates of the Boston basin. 
APPALACHIAN Mountain CLUB, Jan. T rese! 
The reports of the Secretaries and the Treasurer = 
and the annual election of officers held. Mr. n 
a paper on “The sanitary effect of forests.” © z 
inslow read a paper on “ Mount Zion, teea read a 
Jan. 18.—Special meeting. Mr. Fred. A O a 4 
on “ Mexico,” including an ascent of Popocatape™ , 
ber of lantern views being shown. 
NATURAL Science ASSOCIATION oF STATEN ISLAN 
One new member was elected and other pusiness van f: 
C. W. Leng then read a trioer on the Cicindeli ae 
Remarks were made by Mr. Sechusen or Bee i 
series of precious stones, their woe cha prot the © 
localities from which they came. He 
to the society. 
