18 £. Loomis—Observations of the U. 8. Signal Service. 
43° and 50°, averaging about 47°. No. 9 moved northward 
beyond our stations of observation, and probably reached the 
Atlantic Ocean somewhere north of lat. 50°. No. 4 apparently 
os. 8 and 
1. No great barometric disturbances originate in the Salt 
Lake Basin. 
2. Nearly all the great barometric disturbances experienced 
in the Salt Lake Basin come from the Pacific Ocean, and they 
generally come from the northwest. 
.8. Nearly all the great barometric disturbances experienced 
in the Salt Lake Basin can be traced to the Atlantic Ocean. 
They generally meet it near lat. 47° and occupy from two to six 
days in the passage, making an average of 34 days, which cor- 
sears Ss toa movement of about 700 English statute miles 
per day. 
“There is a noticeable uniformity in the direction of the winds 
on Pike’s Peak at the date of the preceding observations. The 
winds were generally from the west or southwest, and in no 
case from north, northeast, east or southeast. The average 
direction of the winds on Pike’s Peak, as determined from the 
observations of five years, is N. 75° W. The average of the 
directions in the preceding table is S. 65° W., differing 40° from 
the mean direction. This result indicates that at the time of 
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