Box-folder 69:1
Container
Contains 1 Result:
Observation Circulars,, 1930-1931
File — Box-folder: 69:1
Scope and Contents
From the Sub-Series:
Contains Lowell Observatory publications and reprints of articles by Observatory staff. Included is the 1930 Observation Circular announcing the discovery of Pluto. Arranged alphabetically.
Dates:
1930-1931