uice contained hydrochloric acid the iodine alwaysgave a blue color, no matter how much saliva was added, orhow long it was kept in an incubation stove. From this heconcludes that there are two separate stages in digestion;that in the first the saliva can act, in the second the pepsinealone acts;… … _^iv5s PERREAUXS STEAM TRICYCLE- The steam produced by the tubular boiler traverses twocopper tubes that are wound about the latter and are indirect contact with the flame. There results from this a pro-duction of superheated steam which is afterwards sent to themotor. The use of superheated steam…
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