nemfrog: Fig. 39. Digestive track _An abridgment of the hygienic physiology : with special reference to alcoholic drinks and narcotics

nemfrog: Fig. 39. Digestive track _An abridgment of the hygienic physiology : with

nemfrog: Fig. 39. Digestive track _An abridgment of the hygienic physiology : with special reference to alcoholic drinks and narcotics_ c.1884

Yea X