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Bulletin - United States National Museum. Science. Figure 17.—Machine used by Alvan Clark & Sons for polishing the 36-inch objective for the Lick telescope. While the lens is evenly rotated, a
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United States of America Floral Map Art Print: Featuring All - Etsy | Floral map, Map art print, Map art
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The American fruit culturist, containing directions for the propagation and culture of all fruits adapted to the United States. Fruit-culture. Fig. 49S.—Wilson. Newman. Rather large, oval, quality very good. Canes of
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