ILLUSTRATIONS 



PAGE 



FIG. 



1. Different types of cells composing the body 43 



2. One end of a muscle fiber ........ 50 



3. Part of a muscle fiber . . . . . . . . -51 



4. Fat cells in muscles -52 



5. Scheme of a fat cell 5 g 



6-8. Successive stages in the formation of adipose tissue . . 59 

 9. Sheep's stomach . go 



10. Stomach and duodenum of horse .81 



11. Stomach of hog g x 



12. Intestines of cattle g 4 



13. Ccecum of horse g^ 



14. Section of villi IO 5 



15. Steer in digestion stall H3 



16. Blood corpuscles I2 4 



17. Diagram of mammalian heart . . . . . -125 



18. Scheme of circulation of blood . . . . . . .127 



19. Relation of cells to blood vessels and lymphatics . . . 130 



20. Main lymphatic trunks 13! 



21. Alveoli of lung !33 



22. Section of two alveoli 133 



23. Diagrammatic scheme of metabolism 182 



24. Scheme of closed-circuit respiration apparatus .... 209 



25. Original Regnault-Reiset apparatus 210 



26. Regnault-Reiset apparatus as used by Zuntz . . . . '211 



27. Scheme of Pettenkofer respiration apparatus . . . -213 



28. Pettenkofer respiration apparatus, explanatory sketch . -213 



29. The Mockern respiration apparatus . . . . . .214 



30. Horse equipped for experiments with Zuntz apparatus . -215 



31. Lavoisier's ice calorimeter 222 



32. Section of bomb calorimeter . 224 



33. The Zuntz tread power dynamometer ...... 226 



34. Dulong's water calorimeter 237 



35. The respiration calorimeter at The Pennsylvania State College . 238 



36. Rubner's calorimeter ......... 239 



37. The marbling of meat 356 



38. Rate of gain of protein per 1000 pounds live weight . . -379 



