Mineralogy and Geology. 399 
points were measured, but these were the only ones that were 
found to be over 14,000 feet high. 
Dr. Parry is the only other explorer who has pote any 
measurements of the peaks of this region. Having, however, no 
station barometers nearer than St. Louis, his results are liable to 
considerable uncertainty, as is shown by the fact that his elevation 
ow 
ble—as, for instance, Georgetown or Wane oes the ob- 
servations continued for at least one year synchronously at the 
two station 
In the meantime, it will be convenient to have the approximate 
heights of all the points in the Rocky Mountains bp measured, 
and which exceed 14,000 feet in elevation. They are as follows: 
Drount Warvard coco 2 shes os: - ve 270 
ray’s Peak cise 2.05: _--14,245 ie! 
Pike's Pesk wns. 2 pte ee = 8 14,216 (Parry 
Mount Lincoln- - -- ---14,128 
Mount Yale----- Soe: Biba 14,078 
Long’s Peak --:-- ~...14,050 (2) 
The result here given for Gray’s Peak is 100 feet greater than 
that obtatied by the Harvard party. That for Long’s Peak is an 
estimate based on a barometrical observation by Messrs. Powell 
and Byers, without any corresponding base Sbaceratnn: the 
barometer stood at 18°100 inches. 
From the Pg i it will be seen that no point has yet been found 
in the Roe nie wet - en as several in the eee Nevada. 
It will re potas Sauter markable coincidence how little the 
points ‘itter rent gets other in elevation. 
coke Cachet atin et 
t unt Harv 
a8 operhin 3 pars the Arkansas and the 
was spree to carry its work so far rhachis 
as weald have been necessary in order to 
The other results of this expedition will be worked out and 
published | in due time. 
point. 
