138 REPORT ON THE STATE CABINET. 



The average fall of water in the first half year is 14.803 ; the average 

 fall of water in the second half year is 17.827 ; general average for 

 thirty years, 32.630. 



The amount of water fallen in thirty years, 978.903 inches; annual 

 general average, 32.630 inches; water of first half year, 444.096, is to 

 that of second half, 634.813, as 5 to 6 nearly. 



Table 7 shows many facts and indicates conclusions : 



1. About one-fifth more water falls in the second than in the first half 

 year. 



2. Average depth of water to end of 1866, or for 30 years, is 32.559 

 inches. 



3. Greatest fall in a year, 1857, was 42.590 inches ; the next, 1864, 

 was 38.690, and 1850, 38.458, and in 1862 was 37.530 inches; the least 

 fall in a year, 1858, 24.356 inches; the next, 24.967 in 1851; 25.460 in 

 1838, and in 1844, 26.200 inches. 



4. Greatest fall in a month, September, 1853, 6.833 inches; the next 

 6.790 in October, 1846, and May, 1864, 6.540 inches; the next 6,160 in 

 July, 1848, and September, 1841, 6,140 inches; the next 6.090 in 

 September, 1861. The least fall in a month, January, 1837, 0.160 

 inches ; the next, February, 1841, 0.210, and then July, 1854, 0.252 inches ; 

 the next, April, 1837, 0.500, and then October, 1839, 0.560; the next, 

 August 1843, 0.700, and less than an inch more. Between 1 and 2 

 inches in 105 months; and in colder months, between 2 and 3 inches in 

 101 ; between 3 and 4 inches in 57 ; between 4 and 5 inches in 34 ; 

 between 5 and 6 inches in 19.; above 6 inches in 6 months. 



5. In the 30 years, September gave the most water, 99.03, and average 

 3.30 ; next, July gave 97.06, and average 3.23 ; and October, 96.64, and 

 average 3.22 ; next, May gave 92.27, and average 3.07 ; and June, 86.74, 

 and average 3.02. In the 30 years February gave the least water, 59.57, 

 and average 2.00; next, January gave 62.98, and average 2.1; and 

 March, 64.00, and average 2.13; next, April gave 74.62, and average 

 2.5 ; and December, 75.17, and average 2.50. 



8. SOME COMMON AND SPECIAL PHENOMENA. 



March 17 and 18. Flooding of a part of the city by the sudden melt- 

 ing of the snow and attendant rain. 



April 14. Some rain in the afternoon, and at sunset a splendid 

 rainbow, full half circle, with the two narrow and fainter bows below 



