19 Mar
2011
19 Mar
'11
6:35 p.m.
Plan for Securing Observations of the Variable Stars,by E. C. Pickering 35613 [Link: http://www.gutenberg.org/3/5/6/1/35613 ] [Files: 35613.txt; 35613-h.htm] Thanks to Walter MacDonald II Regards, Al
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Al Haines