Object Lessons on the Human Body / A Transcript of Lessons Given in the Primary Department of School No. 49, New York City

by Sarah F. Buckelew; Margaret W. Lewis

Of what use is the fluid?—"It dissolves the food."

What do you mean by slimy?—"Soft, moist, and sticky."

What do you mean by irritate?—"To produce unhealthy action."

What do you mean by dissolves?—"Melts."

Where is the food changed after it is taken into the mouth?—"First it is changed in the mouth; second, it is changed in the stomach; third, it is changed after leaving the stomach; fourth, it is changed in the lungs."

By what is it changed in the mouth?—"By the action of the teeth and the saliva."

By what is it changed in the stomach?—"By the action of the stomach and a kind of fluid called gastric juice."

By what is it changed after leaving the stomach?—"By the action of the bile and the pancreatic juice."

By what is it changed in the lungs?—"Nobody knows."

Into what is it changed in the mouth?—"Into pulp."