
Anemometer, used by Dr.M.H.Gordon
circa 1900
circa 1900
circa 1880
circa 1880
circa 1900
circa 1880
1884
1940-1960
1881
1920-1950
1872
1997
1997
1992
circa 1880
1950
1800-1812
circa 1880
circa 1880
1890-1930
1870-1900
1900-1930
1861-1865
1997
1900-1904
1843
1965-1966
1878-1883
1952-55
1996
1986
1846
1882
1932