American Academy of Arts and Sciences · Boston [etc.] · leaf 454
North North Memoirs American Academy of Arts and Sciences. Vol. XIV. No. IV. PLATE IX R and S SCORPII 16 11.7, -22 4(1 (1900)Yerkes negative, 1908, April 5. Scale, 1 mm = 20 5 h m Z SAGITTARII 19 1:J..S, -21 7 (1900)Yerkes negative, 1907, Sept. 11. Scale, 1 mm = 19.7
Arts · Science
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