20 #. Loomis—Observations of the U. S. Signal Service. 
two miles per hour; for the northeast winds twenty-two miles 
per hour; for the southeast winds ten miles per hour, and for 
the east winds I have employed all velocities amounting to 
seven miles per hour. The following table is arranged in the 
same manner as that on page 16. For No. 47 the velocity of the 
wind is given seventy-seven ie according to the published 
observations; but I am informed by General Myers that this 
ey should be thirty ni 
will be observed that with a north wind of thirty-five miles 
per fish on Pike’s Peak, there was apart bl an area of low 
pressure on the east side of that station. In the case of No. 11, 
throughout the = son States the Sasbeniies was above 
thirty inches, but a center was forming near Mobile which 
on the next es onsioned into a storm of considerable inten- 
sity. We also find that there was generally an area of high 
pressure in a panchaee west or northwest from Pike’s Peak. 
With a northwest wind of forty-two miles per hour, there 
was generally an area of low pressure on the sp eer side of 
Pike’s Peak. No. 23 is the same case as No. oticed above. 
We also find 00 Seam was generally an area Of high pressure 
on the Pacific co 
ith a west neti of fifty-five miles per hour, there was 
eaeraly an area of low pressure in a northeast direction from : 
Pike’s Peak, and an area of high pressure on the — coast. | 
No. 40 is mer same case as Nos. 11 and 23 noticed abov 
With a southwest wind of fifty miles per hour, thar was 
generally an area of low pressure in a northerly direction from — 
Pike’s Peak, and an area of high pressure on the Pacific coas 
or on the coast 
With a 
Pike’s Peak. Frequently the center of low pressure appea 
to be in a direction east of north. If there had been more — 
westerly stations of observation it is presumed that in some of © 
these cases the eee of bow pressure would have been found ~ 
bei of Bismark and Fort Sully. In the case of No. 73 an 
of low ogee a sea Ae near Pike’s Peak, which ; 
becaitie fully cscloped the next day. We also find that the i 
pressure was econ mewhat above the mean in a direction — 
southeast from Pike’s P 
With a lee ae "of not less than ten miles per hour, © 
there was generally an area of low pressure at no great distance, — 
but in hal of the cases the lowest observed pressure was on the — 
northeast side of Pike’s Peak. All but three of the cases occurred | 
in summer, and the average velocity of the wind was only sixteen — 
miles per hour. We also find that on the east side of Pike's _ 
Peak, the pressure was in each case a little above thirty inches. — 
of Texas j 
south wind of thirty-two miles per hour, there was — 
scdotay" an area of low pressure in a northerly direction from _ 
ee See ee ee ee en 
