_ Nine Inch Conical Rain Gage. 321 
Art. X.—Description of the ‘Nine Inch Conical Rain Gage; by . 
S. DeWirr. 
Read before the Albany Institute, May 3, 1882. 
DeWitt’s Nine Inch Conical Rain Gage, with the Scale represented in it. 
|; |. AER ue 
| 
Test /F 
Ss 
eee bo oe elseweiere 
. . 
Above 8 tenths of an inch, the scale is graduated to half tenths. The intermedi- 
ate fractions may be measured with sufficient accuracy by the eye. 
Tue contents of a cone nine inches high are equal to the contents of 
a cylinder three inches high, having its diameter equal to that of the base 
