Smithsonian miscellaneous collections . f RUBBING STONES. AE; SCRAP NODULES, F^H; H A M M ERSTONES. W One-half size. SMITHSONIAN MISCELLANEOUS COLLECTIONS VOLUME 95, NUMBER 11 Hrtbur jfunb INFLUENCE OF PLANETARY CONFIGURATIONS UPON THE FREQUENCY OF VISIBLE SUN SPOTS BYFERNANDO SANFORD Palo Alto, California. (Publication 3391) CITY OF WASHINGTON PUBLISHED BY THE SMITHSONIAN INSTITUTION JUNE 5, 1936

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Keywords: ., bookcentury1800, bookdecade1860, bookidsmiths, booksubjectscience