338 
CLINE. 
12th. The observer of the Signal Service at Dodge City 
recorded the relative humidity on September 11th, 5:27 a. m. 
(local time), 48; 1:27 p. m., 14; 9:27 p. m., 24 per cent., which 
is about one-half the per cent, recorded on the preceding date- 
On the 12th, 5:27 a. m., 32; 1:27 p. m., 12; 9:27 p. m., 47 
per cent. On the 13th, 5:27 a. m., 48; 1:27 p. m., 15, and 
9:27 p. m. 48 per cent. On the 14th, 5:27 a. m., 37; 1:27 
p. m., 11, and 9:27 p. m. 66 per cent. The last observation 
of the day shows a sudden and decided increase in moisture, 
which continued and was as marked as the decrease from 
the 10th to the 11th. During hot winds in Texas July 18> 
1886, the relative humidity recorded at the regular observa¬ 
tions at different times during the day was as follows: 5:21 
a. m. (local time), 39; 9:21 a. m., 20; 1:21 p. m., 16; 5:21 
p. m., 16, and 9:21 p. m. 18 per cent., at Abilene, Texas. 
The above records of the moisture in the generally heated 
atmosphere were made without reference to the occurrence 
of the special hot winds; hence the per cent, of moisture 
within these must approximate closely to zero. 
The records of stations near localities from which hot 
winds have been reported have been examined for several 
periods of such winds and the conditions are found in all 
cases examined to be similar to those noted in connection 
with the above stations. 
The direction from which the hot winds blow is the same 
as that of the atmosphere near the earth’s surface prevail¬ 
ing over the section in w T hich they occur at the time of their 
occurrence, and is generally southwest or south, sometimes 
southeast, and frequently from a northerly direction in 
some sections—particularly the extreme western portion of 
Texas, as the conditions under which hot winds occur in that 
section give northerly surface winds. The velocity of the 
hot winds varies considerably in different periods. It is some¬ 
times noted as a light breeze and from that to a gale. It is 
not the same in all sections on the same date; w T hile it is 
blowdng a gale at one place it is noted as a light breeze at 
another place less than one hundred miles distant. 
