142 MASS. EXPERIMENT STATION BULLETIN 153. 



ferent dates, the comparison with those of this station should 

 be made with more caution. The maximum and minimum 

 temperatures of the earlier years were not all taken with self- 

 registering instruments, and this fact should be taken into con- 

 sideration when comparisons are made. 



The records from 1883 to 1889 were taken at the State 

 Experiment Station, on the college grounds, under the direction 

 of Dr. C. A. Goe'ssmann, at that time the director of the State 

 Agricultural Experiment Station, and are fairly comparable with 

 the records of this station. 



Mean temperature for seventy-seven years : — 



47.5X25+46.7X52 ^^eg^ 



77 ^ 



Mean precipitation for seventy-eight years: — 



44.36X53+43.76X25 ^ ^^^^ .^^^^^ 



78 



