for the re- rally accepted as a fact that Mehemet All in- ception of the concentrated mass. It will be creased the fertility of Egypt enormously by seen that the operation of this pan is continuous, planting trees. He alone planted some 80,000,000 and that its working can be regulated with the Fig.… … though two-thirds of the rubber produced is is not confined to the evaporation of liquids, but Fig. 2.-WAHL'S IMPROVED VACUUM PAN. worked up by American factories. the principle involved may also be applied in the A meeting of seventy rubber manufacturers, cooling of liquids, such as wort, etc. The…
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