the bar does not dustrial history of the United States. I'he circumstances to We illustrate a donkey feed pump, from The Engineer, feel any change of temperature, but that at the other ex- which we have been adverting appear to us to demand the which is now being introduced in England. The engrav-… … enough to arrest the movement. stead of adding infusorial earth Fig. 2. or ground quartz to the soap The Potato Bug in Germany. mass and thus producing a sa- The Cologne Gazette says that polio, introduces a considera- from careful obser vations and ble quantity of very fine saw- inquiries made…
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