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Scientific American, Vol. 95, No. 22 (December 1906) (1906)

leaf 2

An illustration from Scientific American, Vol. 95, No. 22 (December 1906), 1906, leaf 2
coal has to be derived from foreign sources, the of its brightness in the last thousand years. A first- of this is to extend the crescent, as observed. For annual imports exceeding 5,000,000 tons. It will thus magnitude star farther south, invisible in our latitude be seen that the situation of the… … business in such a manner grees or more. In tne map, stars of the first magnitude are eight-pointed: second magnitude, six-pointed; third magnitude, five-pointed: fourth magnitude (a that they will be in the po- It is therefore certain few), four-pointed; fifth magnitude (very few), three-pointed,…

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