┌────—┬——————————————————╥——————————————————╥——————————————————┬———————┐ │ │Fed with 200 grms.║Flesh (150 grms.) ║ Sham feeding │ Total │ │ │of flesh (Chigin).║brought into ║ (Lobassoff). │ quan- │ │ │ ║stomach(Lobassoff)║ │ tity │ │Hour.├————————┬—————————╫————————┬—————————╫————————┬————————-┤ in two│ │ │Quantity│Digestive║Quantity│Digestive║Quantity│Digestive│experi-│ │ │of juice│ power. ║of juice│ power. ║of juice│ power. │ ments.│ │ │ c.c. │ mm. ║ c.c. │ mm. ║ c.c. │ mm. │ │ ├—————┼————————┼————————-╫————————┼—————————╫————————┼————————-┼———————┤ │ 1st │ 12.4 │ 5.43 ║ 5.0 │ 2.5 ║ 7.7 │ 6.4 │ 12.7 │ │ 2nd │ 13.5 │ 3.63 ║ 7.8 │ 2.75 ║ 4.5 │ 5.3 │ 12.3 │ │ 3rd │ 7.5 │ 3.5 ║ 6.4 │ 3.75 ║ 0.6 │ 5.75 │ 7.0 │ │ 4th │ 4.2 │ 3.12 ║ 5.0 │ 3.75 ║ — │ — │ 5.0 │ └—————┴————————┴—————————╨————————┴—————————╨———————-┴—————————┴———————┘ The progress of juice secretion in the above is also represented in the following curves: [Illustration: FIGURES 4-7.—A. Ordinary curve of gastric secretion (200 grms. flesh). B. Curve from direct introduction of food (150 grms. flesh). C. Sham feeding with same. D. Summation of B and C.] As you see, the curve which represents the results of the direct introduction of flesh ascends much more slowly and does not attain anything like the height of that caused by normal feeding with the same food. But if the quantities obtained by direct introduction of the flesh be added to those of sham feeding, the resulting curve is almost identical with the normal. In like manner the digestive power of the secretion in the foregoing experiments can be dealt with, and with the same result. It is a good instance of how a secretion curve can be synthetically constructed from its constituent factors.