3. — Yearly Mean of Positive Electricity, of Temperature, and of Rela- 

 tive Humidity of the atmosphere at the hours of d, 9, 12, 3, 6 and 9, 

 from jnorning till night, bated upon daily observations at those hours 

 in r86i — 1870. 



ELECTRICITY. 



TEMPERATURE. 



RELATIVE HUMIDITY, 



