




294 The American Naturalist. [March: 
manner so well explained by Fielden as now occurring within the 
Arctic circle. 
The plants procured had in part been described and figured in papers 
published by Sir W. Dawson in the Canadian Vaturaist. They con- 
stitute a Cold, temperate, or boreal flora, composed of species still liv- 
ing in the region of the Lawrence and its lakes, and northward. Pro- 
fessor Penhallow has kindly undertaken to review the material previ- 
ously described, and to examine a number of specimens recently ob- 
tained, and presents a detailed list and notes of the forms described. 
Boston Society of Natural History.—December 4, 1889, Dr. 
R. T. Jackson discussed certain points in the development of the Mol- 
lusca. Dr. J. Walter Fewkes described a remarkable instance of rock = 
excavation by Sea-Urchins, | 
_ December 18, Dr. Frederick Tuckerman read a paper on the ‘‘ Gus- 
tatory Organs of Mammals.’’ Mr, S. H. Scudder made a few remarks 
on fossil plant-lice. eoo 
January 1, 1890, there was a discussion of ‘‘ The Climatic Condi- a 
tions of the Glacial Period.” Eo 
February 5th, Prof. F. W. Putnam spoke on “Early Man in : 
America,” and brought forward some new evidence of the contempo- 
raneity of man with the mastodon. Mr. S. H. Scudder made a few re- 
marks on a small collection of beetles from the inter-glacial clays of 
Scarboro’, Ontario. * 
February 19th, Mr. Samuel Garman read a paper on “ Some Recent 
Discoveries in Caves.” Prof. W. O. Crosby spoke on ‘‘A Large 
Granite Bowlder in Madison, New Hampshire,” and on ‘‘ The Occur- 
rence of Decomposed Granite in Blandford, Massachusetts. ”’ 
March sth, Prof. W. O. Crosby called attention to an ‘‘ Interesting 
Occurrence of Decomposed Granite in Blandford, Massachusetts.” 
Dr, J. Walter Fewkes read a paper on ‘‘ Some Raré Marine Animals : 
from California.” —J. WALTER FEWKES, Secretary. 

New York Academy of Sciences.—March 10, 1890, the fol- 
lowing paper was read: ‘* On Geographical Variations in the Horned 
Larks of North America,” by Jonathan Dwight, Jr.—H. CARRINGTON 
BOLTON, Secretary. 
Chicago Academy of Sciences.—March 11th, Maj. Gen. Geo. — 
Crook, U.S. A., held a conversazione, Subject: “The Mode of © 
Warfare, Life, and Character of the American Indians.”"—C. E. WEB- 
STER, Recorder. ; 
