ANALYTIC
Title:
Determination of the mean density of the earth by means of a pendulum principle
Parent:
Smithsonian Inst. Annual rept. for 1888
Creator:
Wilsing, J.
Publication:
Smithsonian Inst, Washington, 1890.
Call #:
506.73 SM6AN
Extent:
p.635-646 : illus.
Subjects:
