EiaHTEENTH ANNUAL MEETING. 38 



inches, in January; the lowest was 29.024 inches, in May. The barometer observa- 

 tions are corrected for temperature and instrumental error only. 



BELATIVE HUMIDITY. 



The average atmospheric humidity for the year was 71.3; at 7 a. m. 82.4; at 2 p. m. 

 54.6; at 9 p. M. 79.9. The dampest month was January, with mean humidity 83.0; 

 the dryest month was November, mean humidity, 6,5.0. There were 9 fogs during 

 the year. The lowest humidity for any single observation was 10 per cent., on 

 March 3d. 



3 



