ABSOLUTE AND RELATIVE HUMIDITY AT LANSING AND ORONO. 229 



Hygrometrical observations at the State Agricultural College, Lansing, 



Mich. 



(6.)-MEAN RELATIVE HUMIDITY. (Saturation=100.) 



1863. 

 1864. 

 1805. 



1866 . 



1867 . 



1868 . 

 1869. 

 1870. 



1871 . 



1872 . 

 1873. 

 1874 . 

 1875. 



66.0 

 71.7 

 82.0 

 87.0 

 80.0 

 96.0 

 85.0 

 93.0 

 88.0 

 95.0 

 88.0 

 88.0 



70.0 

 75. 1 



81.0 

 85.0 

 8.3.0 

 95.0 

 84.0 

 90.0 

 84.0 

 95.0 

 89.0 

 94.0 



77.0 

 73.8 

 85.0 

 88.0 

 87.0 

 82.0 

 84.0 

 83.0 

 85.0 



83! 

 87.0 



65.1 

 84.0 

 73.7 

 64.0 

 75.0 

 75.0 

 67.0 

 76.0 

 74.0 

 74.0 

 76.0 

 75.0 

 69.0 



76. 3 67. 2 64. 4 



74.7 

 77.0 

 70.1 

 59.0 

 62.0 

 66.0 

 70.0 

 73.0 

 72.0 

 77.0 

 72.0 

 62.0 

 07.0 



75.6 

 81.0 

 82.0 

 74.0 

 73.0 

 76.0 

 80.0 

 77.0 

 74.0 

 78.0 

 72.0 

 75.0 

 65.0 



76.2 

 80.0 

 85.4 

 74.0 

 70.0 

 77.0 

 76.0 

 79.0 

 77.0 

 77.0 

 75.0 

 71.0 

 78.0 



70.7 



81.5 

 72.0 

 85.1 

 81.0 

 74.0 

 73.0 

 75.0 

 81.0 

 78.0 

 83.0 

 79.0 

 74.0 

 77.0 



71.9 



82.0 

 81.0 

 88.5 

 8.=i.0 

 77.0 

 8). 

 83.0 

 83.0 

 78.0 

 85.0 

 80.0 

 76.0 

 76.0 



75.1 



74.3 

 80.0 

 83.0 

 82.0 

 77.0 

 73.0 

 86.0 

 85.0 

 72. 

 84.0 

 80.0 

 78.0 

 76.0 



73.7 



77.5 

 77.0 

 81.0 

 81.0 

 72.0 

 84.0 

 86.0 

 80.0 

 80.0 

 89.0 

 89.0 

 77.0 

 84.0 



75.9 



84.6 

 73.0 

 80.0 

 79.0 

 76.0 

 90. 

 82.0 

 94.0 

 80.0 

 91.0 

 69.0 

 85.0 

 90.0 



77.9 



76.5 

 79.6 

 77.1 

 76.3 

 78.7 

 81.5 

 82.1 

 80.4 

 79.6 

 82.3 

 78.6 

 79.2 



72.6 



Hygrometrical observations made at the State College of Agriculture and 

 the Mechanic Arts at Orono, Me., 1809-1870. 



1869 



1870 



1871 



1b72 



1873 



1874 



1875 



1670 



Mean 



