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

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Keywords: ., bookcentury1800, bookdecade1860, bookidsmiths, booksubjectscience