KANSAS WEATHER REPORT FOR JANUARY. 763 



The cost of hand labor in keeping the pavements in order is 0.1,54 francs 

 per square meter. 



The Macadamized roadways cover an area which, although less than 

 in 1870, is still 1,900,000 square meters. The number of cantonniers required 

 for their maintenance is 965. 



The steam rollers employed weigh about thirty tons each. The rolling 

 is generally completed in a single night. — Van Nostrand's Magazine. 



KANSAS WEATHER REPORT FOR JANUARY, 1878. 

 PREPARED BY PROF. F. H. SNOW, OF THE STATE UNIVERSITY. 



Station. — Lawrence, Kansas; latitude, 38°, 57', 25"; longitude, 95°, 16'; 

 elevation of barometer and thermometer, 875 feet above the sea level, and 

 five feet above the ground ; rain gauge on the ground : anomemeter, 105 feet 

 above ground, on the dome of the University building, 1,200 feet above the 

 sea level. 



The month was remarkable for its high temperature and large rainfall. 



Mean temperature, 33°. 97, which is 8°. 04 above the January average of 

 the ten preceding years. January, 1876, however, was slightly warmer, 

 having a mean of 84°.70. The highest temperature was 55°, on the 24th; 

 the lowest was 7°. 5 on the 6th, giving a monthly range of 47°. 5. This is a 

 very limited range, indicating unusual uniformity of temperature. The 

 mean at 7 a. m. was 38°. 30 ; at 2 p. m., 40°.53 ; at 9 p. m., 33°.56. There were 

 22 days during the month whose mean temperature was above freezing 

 point. The mercury has not reached the zero point during the winter. 



Rain, 3.05 inches, which is 1.85 inches above the January average. Either 

 rain or snow fell on nine days. There were flurries of snow on the 8th and 

 13th, not enough for measurement. There was a brisk thunder shower 

 on the 26th, with hail and sharp lightning. The entire depth of snow for 

 the winter thus far has been half an inch. 



Mean cloudiness, 46.77 per cent., the month being 1.49 per cent, clearer 

 than usual. The number of clear days was 14 (entirely clear, 9; half-clear, 

 9 ; cloudy, 8 (entirely cloudy, 8). Mean cloudiness at 7 a. m., 53.22 per cent.; 

 at 2 p. M., 47.42 per cent. ; at 9 p. m., 39.68 per cent. 



Wind— N. W., 43 times ; S. W., 24 times ; K E , 17 times ; S. E., 5 times ; 

 E., twice ; IsT., once ; W., once. The entire distance traveled by the wind 

 was 9,996 miles, which gives a mean dail}' velocity of 322.45 miles, and a 

 mean hourly velocity of 13.43 miles. The highest velocity was 40 miles an 

 hour from 2 to 3 P. M. on the 5th. 



Mean height of barometer, 29.144 inches ; at 7 a. m., 29.158 in.; at 2 p, m,, 

 29.120 in.; at 9 p. m., 29.151 in.; maximum, 29.618 in., on the 6th; minimum, 

 28.835 in., on the 11th.; monthly range, 0.783 in. 



Relative humidity — Mean for the month, 73.4; at 7 a. m., 82.4; at 2 p. 

 M., 57.3 ; at 9 P. m., 80.2. Greatest, 94.7 on the 13th ; least, 37.4 on the 23d. 

 There was no fog;. 



