ANIMAL CHEMISTRY. 413 



QUESTIONS. 



557. What is said of the elements which come into play in animal chem- 

 istry ? Give examples of the combinations of elements that are introduced 

 into animals. 558. Indicate some of the points in which animal and veg- 

 etable chemistry are alike. 559. Indicate some in which they differ. 

 SCO. Give in full- what is said of the composition of the blood. 561. De- 

 scribe in full the way in which the blood is made. 562. What is said of 

 the occurrence of albumen in animals ? 563. What are the constituents 

 of the contents of an egg ? What is said of the formation of the bird 

 in the egg ? 564. What of gelatin ? 565. Into what two classes are the 

 various kinds of food divided? State what is said of the heat -making 

 class. 566. What relation has climate to food? 567. How is the warmth 

 of some hibernating animals maintained in their torpid state ? What is 

 said of the fat of the body in disease ? 568. What of corpulency ? What 

 of the butter in milk ? What of fattening animals ? 569. What apparent 

 discrepancy is there in regard to the food and the animal heat of carnivo- 

 rous and herbivorous animals ? State in full what is said to clear up this 

 discrepancy. 570. What is said of the relation of food to labor? What 

 is said of the manna of the Israelites ? What of the proportion of nitrog- 

 enous to heat-making food ? What of the use of an excess of animal food ? 

 571. What of the mingling of the two kinds of food ? What is said of 

 feeding animals on some single substance alone ? 572. What of the com- 

 bination in milk? What error is frequently committed in the diet of chil- 

 dren ? 573. State in full what is said of the proportions of the two classes 

 of food in different articles. 574. What is said of the chief objection to 

 Liebig's classification? 575. What is said of the amount of animal heat? 

 576. What of the uses of fat in the system ? 577. What is said of phos- 

 phorus in animals and in their food? What of sulphur? 578. What of 

 the diffusion of lime in nature ? What is said of the thickness of the shells 

 of mollusks ? What of the shells of hens' eggs ? 579. What of the pres- 

 ence of iron in animals? W T hat of its presence in food? What of its of- 

 fices in the blood ? 580. What is said of the presence of salt in animals ? 

 What of its use as an accompaniment of food? 581. State in full what is 

 said of water as an ingredient of animal and vegetable substances ? 582. 

 Explain in full endosmose and exosmose. 583. Give in full what is said 

 of the circulation of matter ? Also what is said of its interchange. And 

 what is said of the harmony of creation in the midst'-of all its change. 



