Moon Craters 1872-73. Cassini, Plinius, Guerike, Parry, Bonpland, Fra Mauro, Arzachel, Alphons, & Alpetragius. Plate 18 in “Astronomical Engravings Prepared at Harvard College Observatory 1872-75.” NOAA Central Library Rare Book, Call No. QB86.H3 1876.
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| Added On | 18th October 2015 |
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