22 E. Loomis— Observations of the U. S. Signal Service. 
With an east wind of not less than seven miles per hour on 
Pike’s Peak, the pressure on the Pacific coast was generally 
~ somewhat less than thirty inches, while on the east side of that 
station the pressure was a little greater than thirty inches, but 
at Santa Fé the pressure at these dates was not sensibly below 
the mean. The average velocity of the wind was only twelve 
miles per hour. The majority of these cases occurred in sum- 
mer, and none occurred during the colder half of the year. 
pressure less than thirty inches was generally found on the east 
side of Pike’s Peak, its average direction being about south- 
east. Also a pressure greater than thirty inches was generally — 
found on the north or northwest side of Pike’s Peak, butin | 
half of the cases ne difference teedanh these two pressures did | 
not exceed a quarter of a — 
Comparing the areedice aalie with those before found for — 
Mt. Washington, we see that with a high wind from the north, — 
northwest, west, or boa tiwact ‘he position of the areas of low i 
pressure is similar at both stations, but the centers of least — 
pressure are easuehtly more remote from Pike's s Peak, and are © 
more widely scattered This difference may be partly explained 
by the small number of stations east and north of Mt. Wash- — 
ington. With a high south or southeast wind on Pike’s Peak — 
the oF a of the low center is sometimes apparently east of — 
Similar anomalies are sometimes noticed on Mt. Wash- — 
engin, but they admit of a plausible explanation. We also — 
notice that with a low center at a given locality, the high winds ~ 
on Pike’s Peak may have a great variety of directions. Thus — 
when there is a low mies at Fort Sully, we find high winds ~ 
on Pike’s Peak from north, northwest, southwest, south, © 
and southeast. When there is a low at Bismark or Cheyenne q 
we find high winds on rhis fr northwest, west, — 
also 
on Pike’s Peak depends partly upon the poate of the areas | 
of high pressure, but a di 4 
circumstances which cannot be clearly ibaa from the want — 
of observations at a silent number of stations. ’ 
With an east or northeast wind on Pike’s Peak, there is | 
generally no low center of much magnitude indicated at any of | 
the stations, and the average difference between the high on | 
one side and the low on the other is only one-third of an inch. | 
Hence we conclude that while high winds on Pike’s Peak — 
from the directions north, northwest, west and southwest indi- | 
cate a circulation about a low center according to the same law | 
