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*Exercises.*—1. How does oxidation at the cells make necessary the introduction of new materials into the body? What different purposes are served by the foods? What is a nutrient? Name the important classes. What are food materials? From what sources are they obtained? Name the different kinds of proteids; the different kinds of carbohydrates.

Take his own definition of "bioplasts," as copied from Professor Beale, coupled with what they both term "nutrient matter" and "germinal matter," or bioplasm, and this confident assertion of his will land him at once where the highest powers of the microscope fail to give back any intelligible answer, or where neither assertion nor contradiction avails anything.

"There is, for example, a moving page on child life in a north-west poverty area, where, among other conditions, it is not uncommon to find girls of ten doing a hard day's work outside their school work; they are the slaves of their mothers and grandmothers. "Cheap food. The necessity for buying cheap food results in the purchasing of foodstuffs which are deficient in nutrient properties.

Layers of damaged tissue peeled off in his hand, but he continued massaging and changing the solutions, first saline, then nutrient broth. "Get me some sponges and a blade." Tiger brought them in. Carefully Dal began debriding the damaged outer layers. Jack and Tiger watched; then Jack said, "Look, there's a tinge of pink in the middle." Slowly the faint pink in the center grew more ruddy.

Feeding of thymus to some of the lower creatures of the animal kingdom will completely hold up differentiation. Take the unfolding of the specialized tissues and organs which transform the tadpole into the frog and the chrysalis into the butterfly. A tadpole kept supplied with enough thymus in a nutrient medium will swell into an extraordinary giant tadpole, but will not change into a frog.

When the charge galvanic tingled through the cable, At the polar focus of the wire electric Suddenly appeared a white-faced man among us Called himself "DE SAUTY." As the small opossum held in pouch maternal Grasps the nutrient organ whence the term mammalia, So the unknown stranger held the wire electric, Sucking in the current.

The nutrient vessels of the eye tone down in size, and there is polish, sparkle where there was only dimness; and on the face the venus clouds, black and red, begin to disappear; the toning of the veins condenses the skin, and thereby the ruddy arteries are uncovered, and a color that has life appears; the pimples, the hillocks, even have a brighter look as they slowly shrink from sight.

You're not eating enough protein or nutrient food to be healthy and you must eat more or you're going to develop serious deficiencies. You don't have any energy, you must be getting sicker. You're doing the wrong thing, obviously. You have less energy and look worse every day. Go and see a doctor before it is too late."

Unless he had some way to set up a protective barrier...." Dal took the beaker. "Get me some saline," he said tightly. "And some nutrient broth." Jack pulled out two jugs and poured their contents into an empty beaker. Dal popped the tiny limp form into the beaker and began massaging it.

This general uniformity in proportion of protein makes it easy for the housekeeper who does not wish to enter into the complexities of food values to make sure that her family is getting enough of this nutrient.