oblem whose importance is increasing every day by quire a less quantity of heat than water does for its tubes and the reason of the progressive augmentation of the cost of fuel. In fact, the efforts made in this direction with chest. One had conversion into vapor, and which, under the latter… … ately results in a considerable increase of the Fig, 1—CONDENSO-GENERATOR. pressure of the vapor, etc. Dr. De Susini has this place. It consists of a num- surmounted all] these difficulties, after numer- ber of vertical tubes, J (Fig. 2) and 8 kilogrammes to 1°5 and 1 kilogramme, and ance and…
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