
Wet and dry bulb psychrometer for humidity measurement
1960-1970
1960-1970
1926-1932
1940-1950
1959
2010
1925
1940
1890
1876-1884
1960-1970
1950-1953
1925
1815-1841
1964
2010
2010
1997
1643
1914
1924
1939
1899
1914
1891-1890
1900-1908
1986
1923
1985
1944
1908-1910
1891
1695-1705
mid-1800s
1957
1935
[1965]
1794
1970
1993
1930-1950
1944
1986
1907
1949