r some time. concave surfaces facing each other, as shown in Fig. 1. put down to the fourth sand, showed the same result. The accepted explanation of this phenomenon is that Place a short candle on the stand, D, so as to reflect a The lucky find is a new sand 150 feet below the old the contact of… … part of the chimney, and the air is partly exhausted flector, B, support an air thermometer, B, upon two Fig. 7.-MEECTJEIAL SHOWEE. from this chimney, by applying the mouth to the rub- stands, F F, as shown in Fig. 2. Two inverted W- ber tube and sucking. The mercury readily passes sliaped pieces…
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