Hybrid star charts (plates left folded).
From p. 202 of The Friendly Stars by Martha Evans Martin (1909). Original from Harvard University. Digitized March 24, 2008.
(via cinoh)
5 months ago 
345 notes
Hybrid star charts (plates left folded).
From p. 202 of The Friendly Stars by Martha Evans Martin (1909). Original from Harvard University. Digitized March 24, 2008.
(via cinoh)
5 months ago 345 notes
