Harvard College. Astronomical Observatory,
No. I in *5920.3.1=No. 1 in **E.144.6.1 Bond, w illiam Cranch, 1789-1859. History and description of the Astronomical Observatory of Har- vard College.
(In Harvard College. Astronomical Observatory. Annals. Vol. 1, part 1. (3), exci pp. Illus. Plates. Plans. Cambridge. 1856.)
 
This card was printed at the Boston Public Library, March 18, 1919.
L6403 — Harvard College. Astronomical Observatory.