le bird-like man- have been generally used as refrigerating agents in shown in the photograph; but as the apparatus is in- ner of locomotion. The huge feet, about four feet long connection with vaporization processes, these substances tended for demonstration purposes only, its dimensions and three… … cation of a number of the tion, its manipulation will great denizens of the earth be found extremely simple. of absorbing large amounts of heat. The arrangement toward the end of the age of reptiles, among them the It is only necessary to turn on the cold water and and working of a refrigerating…
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