TABLE 2. Monthly and annual barometric pressure at 2 p. m. 



at Orono, Me. 



The maximum barometric pressure reduced to 32 F. was 

 30.833 inches ; the minimum, 28.423 inches ; ; and the mean, 

 29.842 inches. The correction for gravity is inappreciable. 



THERMOMETRY. 



Temperature observations began to be made by Dr. M. C. 

 Fernald, January i, 1869. From this date to January I, 1893, 

 observations were made three times a day, at 7 a. m., 2 p. m., 

 and 9 p. m. In Table 3 the mean of these observations is found 

 by assigning to the 9 p. m. observations a double weight. Begin- 

 ning with 1893 * ne maximum and minimum temperature for 

 each 24 hours were recorded. Table 4 shows the maximum and 

 minimum for each month. The thermometer used from 1869 

 to 1893 was a Kuddleston, since that time a Green. The loca- 

 tion was changed in June, 1879, and about January, 1893. 



