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oz.) of water, with 15 grains of Boudault's pepsine, and 81 grains-of bicarbonate of soda to a pound of meat (weighed raw), the chemicals costing about seven pence. Where pepsine is unattainable, strips of calves' stomach answer very well, or we do not see why the rennet prepared from it, and used for curdling milk, should not be employed. The food thus prepared keeps well until neutralized, but not so well afterwards. One point to be noticed is, that no metallic vessel should be used in thedoi:10.1056/nejm186708150770208 fatcat:l7jeugkuwvhqjkyuy7b3fpm7ti