LOCAL CLIMATOLOGY. 83 



temperature for every clay in the year, with the maximum of heat and 

 of cold for the day as observed in the observatory in this place for a 

 period extending over twelve years, from 1854 to 1865 inclusive. 

 During the first year the records are incomplete; still, however, if any 

 one should wish hereafter to continue the average here given, he has 

 only to multiply that which is given by twelve, and add that for any 

 other year and divide the amount by thirteen. 



