( )



:

?


- " "

(Jerkes Observatory) (), 1897 . 102- . , , .


:
" (. 1922)"
" (1863-1943)" - ...
""
""
""
" "
" (1865-1939)" - ...
" (1869-1958)"
" (1902-50)"
" (1880-1937)" - ...
""