Merrill.] 
452 
[April 5, 
Professor Hyatt remarked that the Society owed the present 
excellent condition of this collection to the labors of Mr. Wells, 
who had catalogued and arranged the slides and revised all 
the labels. No mention of these facts had been made by Mr. Wells 
himself, though the time and labor required had been considerable 
and the value of the collections greatly increased by his own revison. 
On motion of Professor Hyatt, the Secretary was directed to 
express to Mr. Habirshaw the Society’s gratitude for this valuable 
gift. 
General Meeting. April 5, 1882. 
The President, Mr. S. H. Scudder, in the chair. Twenty-four 
persons present. 
Prof. G. Frederic Wright remarked on the similarity of the 
paleolothic implements of Eygpt and New Jersey, and showed a 
spear head found at Trenton two weeks since, almost exactly 
identical with an Egyptian one figured by Professor Haynes. 
Professor Wright then described in detail the limit-line of the 
great Ice Period in Pennsylvania, which he had recently explored 
and mapped out for a distance of four hundred miles. 
A paper entitled “Two new and diverse types of Carboniferous 
Myriapods,” by S. II . Scudder, was presented by title . 1 
The following paper was read : 
CONCERNING THE LITHOLOGICAL COLLECTION OF THE 
EXPLORATION OF THE FORTIETH PARALLEL. 
. f Second paper. 
BY N. F. MERRILL. 
Allusions to Mr. Wadsworth’s “first paper” and to his “second paper” 
refer respectively to the papers : “ On the Classification of Rocks by M. E. 
Wadsworth,” Bull. Mus. Comp. Zool. Harv. College, Cambridge, Mass., 
1 To appear in the Society's Memoirs. 
