260 Report of the Regents of the University, 
of the indigenous, Flowering and Filicoid “plants growing within 
twenty miles of Bridgewater, Oneida County, N. Y.” by A. Gray, 
M. D., embracing 777 species 3 and another, of the plants growing in 
the vicinity of Cortland Academy, by George W. Bradford, M. D., 
containing 563 species, exclusive of the class Cryptogamia and the 
Grasses. There is a table of the latitude and longitude, and eleva- 
tion of the places where the academies are situated. 
~ Very complete records, kept by T. Romeyn Beck, M. D., at AL 
Way, for the last thirteen years, together with tables of several previ- 
ous years by other gentlemen, auabiod him to make the following 
ract. 
He verified the observation of Humboldt, that the “ mean tempe- 
ratures of the year, obtained by two or three observations, do not dif- 
fer sensibly, if the intermediate observation be sufficiently distant (four 
or five hours) from the observation of maximum and minimum.” 
taking the annual averages of the mean temperatures of the observa- 
tions, thus made during eleven years, he found them to differ by 
only 0°45. 
He ascertained the mean temp. of Albany, 
: to be 49°04° 
from the observations of seventeen years, 
Highest point of the thermometer, 100° — in £820. 
Lowest do. do. —20° in 1796. 
Greatest range, - : 120° 
‘The weather for 15 years gives an annual average of neany sted 
fair days. 
Rain, annual average, 79 a 
Snow, “ 22 
~ Rain gage for 7 years, annual average, 40°64 inches. 
~ Winds 15 years—south 15094 days, or an annual average of 
100% days. 
Humboldt states that the isothermal line of 50° passes near Bos- 
ton ; and on comparing the results obtained at Albany, with those 
upon which he founded his conclusions, we discover a very: close ap- 
proximation. 
Humboldt, in opposition to Kirwan, asserts, that the mean tempe- 
rature of October approaches nearer to that of the whole year, than 
the mean temperature of April. Dry. Beck finds from the observa- 
tions of seventeen years, (which include the results of several very 
intensely cold winters,) the average mean temperature of the year, 
to be 49°04°; of October, 50°63°; of April, 48°38°. 
