TABLE OF CONTENTS. 



IV. THE BLOOD AND CIRCULATION. 



25. Study of Beef Blood. . ; 50 



26. Microscopic Study of Blood Corpuscles 58 



27. Study of a Beef Heart. 54 



28. Circulation of Blood in the Tail of a Tad- 



pole 56 



29. Pulse in the Pupil's own Body 57 



V. THE SKELETON AND THE MUSCLES. 



30. Structure of Bones 58 



31. Composition of Bones 60 



32. Classification of Bones 62 



33. Study of the Muscles 62 



34. Study of Beefsteak 67 



35. Structure of a Joint 68 



36. Study of the Joints in the Body , 70 



37. Comparative Study of Mammalian Skeletons. . . 73 

 VI. RESPIRATION. 



38. Action of the Diaphragm and Lungs 75 



39. Circulation of Air in the School- room 77 



40. Inspired and Expired Air. 78 



41. Temperature of the Body 80 



VII. THE SKIN AND THE KIDNEYS. 



42. Study of the Skin . . -. 80 



43. Study of Excretion 83 



44. Study of a Sheep's Kidney 84 



VIII. NERVOUS SYSTEM. 



45. Sensations of Touch 86 



46. Sensations of Taste and Smell 88 



47. Study of a Sheep's Brain 90 



IX. SUPPLEMENTARY WORK. 



48. Study of Yeast 94 



49. Study of Bacteria 100 



50. Study of Living Vertebrates 107 



X. THE COMPOUND MICROSCOPE. 



51. Parts of the Compound Microscope 108 



52. Rules for the Use of the Compound Microscope. 112 

 XI. LIST OF APPARATUS AND CHEMICALS FOR CLASS OF 



TWENTY-FOUR,. . 115 



