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211 meat, and amounted to 32 per cent.; and the lowest proportion occurred in the case of rabbits fed on bread and oats, and I amounted to 1 per cent. only. Still more recent experiments, made with improved appa-I ratus and methods by Pettenkofer and Voit, in Munich, show, like those of Regnault, that the proportion of the oxygen employed in forming carbonic acid, to the whole oxygen absorbed, varies with the food, ranging in the case of a large dog from I .52'4 to 148'2, according as thedoi:10.1016/s0140-6736(02)75821-2 fatcat:bksmqvcm2fha7b35pdxweqar6y