APPENDIX TO THOMPSON'S VERMONT. 



TEMPERATURE AT NE\TBURT. 



FAXL OF WATER AT BURLINGTON. 



ANNUAL MEAN TEMPEKATURE AND WEATHER AT NEWBURY. 



The matei'ials for the above table are 

 derived from Meteorological observations 

 made at Newbury, by Mi-. Johnson, of that 

 place, and published in the Annual Report 

 of the Regents of the University of New 

 York for 1850. These observations were 

 continued through a period of twenty-seven 

 years, but tlie earlier observations were 

 made without a thermometer, and embraced 

 only the clearness of the sky, the rains and 

 snows, the course of the winds, the progress 

 of vegetation, aurora borealis, and other 

 rare phenomena. The mean temperature 

 in the above table, is derived from three 



daily observations, made at 6 a. m., noon, 

 and 6 p. m. This mean is probably a little 

 higher than it would have been if the ob- 

 servations had been made at sunrise, 1 p. 

 M. and 9 p. m., as in the preceding table. 

 By a comparison of the eight years, from 

 1842 to 1850, which are embraced in both 

 tables, the mean annual temperature of 

 Buiiington appeai-s to be about two-thirds 

 of a degree warmer than Newbury, while 

 the latitude of the place of observation in 

 BurlingtoH is 23' greater, and its altitude 

 above the ocean about 76 feet less than the 

 place of observation at Newbury. 



MONTHLY AND ANNUAL FALL OF WATER AT BURLINGTON. 

 Continued from page 12, Part I. 



By the above table it appears that the 

 greatest amount of water in any one year 

 was 38.55 inches in 1847, and the least 

 26.35 in., in 1S49,— range 12.20 in. The 

 gi'eatest monthly amount was 8.11 inches, 

 in October, 1850, and the least 0.41 in. in 

 February, 1849 — range 7.70 inches. The 

 proportion of the water, which falls in snow. 



is about one-fifth of the whole amount. The 

 greatest rain-storms in the eleven years 

 embraced in the above table, were on the 

 10th of July, 1844, when there fell 4.07 

 inches in twenty-four hours, and on the 

 22d and 23d of June, 1851, when the 

 amount was 5.16 inches in thirty-six hours. 



