360 General Notes. [April 
me; G. oi ag Notizen Meo Reptilien. Fortsetzung I., II. Zool. An- 
eig ya B From the a 
How ae ye + Venigial Structures of the Reproductive Apparatus in the 
Male of ay ce Lizard. From the author 
Jastrow, F. SATE Perception of Dans by Discente Senses. Ext. “ Mind,” 
vol. xi. No. 44. From the author. 
Forbes, S. A Pye Poisons for the Codling Moth, 1887. From the author. 
A F—The Sou payaa = Value in Money. Philadelphia: H. C. Baird & 
Co., 1882. Pros the au 
Genth, F. A.—On an oe = Iron from East Tennessee. Ext. Proc. 
Acad. Nat. Sci., Phila. From the author 
= mball, F. P.—Precious Metals of the “United States, 1886. From the author. 
P,.—Unoffcial yee of the Berlin International Congress of Geologists. 
Peas the author 
GENERAL NOTES. 
GEOGRAPHY AND TRAVELS. 
America. THE Muir Gtacier.—The Muir Glacier, which 
presents a front of one mile to an inlet at the head of Glacier 
Bay, Alaska (58° 50’ N. 136° 40’ W.), has been investigated by 
Mr. G. F. Wright. Near the mouth of the bay is a cluster of 
low islands, evidently formed of glacial débris, and forested. 
_ hundred and fifty feet high. Between these mountains the glacier 
is ten thousand six hundred and sixty-four feet wide. The angle 
of ice projects into water five hundred and sixteen feet deep, and 
is itself two hundred and fifty feet high. The surface of the ice 
ses to the east and north about one hundred feet to the mile. 
The main body of the glacier occupies a vast amphitheatre, with 
diameters ranging from ~ to forty miles. Nine main streams 
unite to form the grand trunk, and seventeen sub-branches can 
be seen. Rocky e Sui rising above the surface are smoothed 
and scored and have glacial débris upon them, showing that, like 
the islands in the bay, they have been recently covered by ice. 
On thé side from which sf ice approached these islands it is 
hundred feet higher than on the lee side. The ice in the 
| me million cate feet: enter the water daily, since he whale 
mile of v width and seven hundred feet of d depth move on at a 
1 Edited by W. N. LOCKINGTON, Philadelphia. 
