resisting surface being at that point a paste, which is introduced by means of a piece of cot- reduced to a minimum, the elastic band is relaxed ton on the end of a wire into the tube by which the and the kite assumes the fourth position represented bulb is exhausted, and the walls of the tube are… … phire, tourmaline, etc. A smaller case closing the tube. The chemical pro- contains specimens of petrified wood duct on the walls of the tube is then from Arizona, with sections of trees ; heated, and it absorbs the remaining also collectionge of precious stones. One portion of the gases; at this…
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