A. C. Peale—Ancient Outlet of Great Salt Lake. 439 
Te give for my determination the values of the ohm as 
ollow 
From Elliott Bros. resistance coils, °99257 
i * 10- ohm standard, "98963 . 
ea Ws M& 07s 99129 
Se WM) rad ¢100-ohm . ‘99098 
For the reasons given above I accept the mean of the last 
two results as the value of the ohm. 
To preserve my standard I have made two extra copies of 
it, the one in German silver and the other in platinum silver 
alloy. The comparisons are given below. No. 1 is in German 
silver, and the other in platinum silveralloy. The temperature 
LEG: 
earth quad. 
sec, 
Ne Devore, 20S 1. Pees June, 1877. 
Noe Dy ct vie. ed 100029 Feb., 1878 
No: Hh eos es Ses 99630 June, 1877. 
Ov Hicueesihs Seb 99932 Feb., 1878 
These are the mer of the copies in terms of the original 
earth quad. 
standard whose resistance is 34°719 
From these results it would seem that the German silver of 
several years and seems to have reached its constant state. 
he final result of the experiment is 
earth quad. 
1 ohm = 9911 sep ae 
Arr. LXTIL—The Ancient Outlet of Great Salt Lake; by A.C. 
PEALE. 
In this Journal for April, 1878, pp. 256-259, is an article 
entitled “The Ancient Outlet of Great Salt Lake; a letter to 
the editors by G. K. Gilbert.” In this article Mr. 
states that “‘ previous to 1876 the outlet was not discover ed, or 
if Mosbeeted: its position was not announced,” and that “in 
the summer of that year” he “had the great pleasure re of find- 
ing it in Idaho, at the north end of Cache Valley, the locality 
being known as Red Rock Pass.” He says also that the 
announcement was made by him “without reservation in a 
communication to the Philosophical Society of Washington,’* 
* At the 116th meeting of the Society, January 13, 1877, “Mr. G. K. Gilbe 
¢ fossil lake of Utah. tle 
described an ancl oudet of the Tako at” Hed Hock Pass near the town of 
