Millions of mankind are starved for protein in the midst of plenty; protein exists in grass, leaves, and even weeds, but in a form indigestible to human stomachs. Most widely used device for converting protein into edible form is the common cow. But in many tropical areas, where protein starvation is most acute, cows are scarce and do not thrive. Last week, in London's industrial East End, British Inventor Israel Harris Chayen of British Glues & Chemicals, Ltd. proudly displayed a climateproof mechanical cow. Chewing its cud with the rumble of a bomber squadron, the 50-ft. machine briskly chomped up vegetable...
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