NO. 17.] 



RELATIVE HUMIDITY. 



507 



From these Tables are taken out the epochs and the values of the 

 diurnal minima and maxima, and the diurnal range, as shown in the following 

 Table. 



Minimum. 

 Hour. Dev. 



Maximum. 



Hour. 



Dev. 



Range 

 per cent. 



January 



February 



March 



April 



May 



June 



July 



August 



September .... 



October 



November 



December 



Winter 



Spring 



Summer 



Autumn 



Dark Season . , . 

 Sunny Season . . 

 Equinoct Months 



Year 



Noon 



Noon 



4 p. m. 



2 p. m. 

 11 a. m. 



2 p. m. 



4 p. m. 



2 p. m. 



4 p. m. 



7 p. m. 

 10 a. m. 



10 p. m. 



Noon 

 Noon 

 2 p. m. 



11 a. m. 



Noon 

 Noon 

 Noon 



2 p.m. 



- 2-1 



- 1-6 



- 2-1 



- 6-5 

 -12-3 

 -16-6 



- 9-9 

 -12-6 



- 5-9 



- 3-0 



- 1-7 



- 1-3 



- 0-9 



- 6-0 

 -12-7 



- 2-3 



- 11 

 -10-6 



- 3-0 



- 5-1 



6 a. m. 

 6 a. m. 

 6 a. m. 

 4 a. m. 

 Midnight 

 1 a. m. 



1 a. m. 

 Midnight 



2 a. m. 

 11 p. m. 

 Midnight 



9 a, m. 



6 a. m. 



2 a. m. 

 1 a. m. 



1 a. m. 



2 a. m. 



1 a. m. 



2 a. m. 



1 a. m. 



+ 1-5 



4- 0-8 

 + 2-5 

 4- 6-3 

 + 14-8 

 + 17-0 

 + 8-5 

 + 12-0 

 + 5-1 

 + 2-8 

 + 2-9 

 + 1-5 



+ 1-3 



+ 6-7 



4-12'l 



+ 3-3 



+ 0-8 

 + 10-7 

 + 3-3 



+ 5-4 



0-36 

 0-24 

 0-46 

 1-28 

 2-71 

 3-36 

 1-84 

 2-46 

 1-10 

 0-58 

 0-46 

 0-28 



0-22 

 1-27 

 2-48 

 0-56 



0-19 

 2-13 

 0-63 



105 



