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As We Have Seen, Bread, And Especially Dry Bread, Evokes Secretion Of Considerably Larger Quantities Of Saliva Than Meat.

Edible Substances Evoke The Secretion Of Thick, Concentrated Saliva. Why? The Answer, Obviously, Is That This Enables The Mass Of Food To Pass Smoothly Through The Tube Leading From The Mouth Into The Stomach.

Perfect As The Wing Of A Bird May Be, It Will Never Enable The Bird To Fly.

Thanks To Our Present Surgical Methods In Physiology We Can Demonstrate At Any Time Almost All Phenomena Of Digestion Without The Loss Of Even A Single Drop Of Blood, Without A Single Scream From The Animal Undergoing The Experiment.

Our Success Was Mainly Due To The Fact That We Stimulated The Nerves Of Animals That Easily Stood On Their Own Feet And Were Not Subjected To Any Painful Stimulus Either During Or Immediately Before Stimulation Of Their Nerves.