. In order to September, each being divided into fifteen-minute reach the external atmosphere this vapor of periods, and the record for each being kept distinct. air must pass through the insulating layer and The total number of birds counted in the three then fill the external spherical air space.… … air which is expanded the second time is drawn out ing it to expand. The jet of escaping air liquefied, Fig. 4.—INTEBNAL CONSTBUCTION OF LIftUEFIEE. of the under-cooler as return current No. 2 by the suc- as could be plainly seen. There was distinct stratifi- tion of compressor No. 1, passing…
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