Hygiene of the Skin, continued, 311 35. Appendages of the Skin, 322 36. Anatomy of the Nervous System, 327 37. Anatomy of the Nervous System, continued, 340 38. Physiology of the Nervous System, 346 39. Hygiene of the Nervous System, 358 40. Hygiene of the Nervous System, continued, 368 41. The Sense of Touch, 378 42. Anatomy of the Organs of Taste, 384 42. Physiology of the Organs of Taste, 386 43. Anatomy of the Organs of Smell, 389 43. Physiology of the Organs of Smell, 391 44. Anatomy of the Organs of Vision, 394 45. Physiology of the Organs of Vision, 404 45. Hygiene of the Organs of Vision, 410 46. Anatomy of the Organs of Hearing, 414 47. Physiology of the Organs of Hearing, 420 47. Hygiene of the Organs of Hearing, 422 48. Means of preserving the Health, 425 49. Directions for Nurses, 432 - - - - - APPENDIX, 439 GLOSSARY, 451 INDEX, 463 ANATOMY, &c. CHAPTER I. GENERAL REMARKS. 1. ANATOMY is the science which treats of the structure and relations of the different parts of animals and plants. 2. It is divided into _Vegetable_ and _Animal_ anatomy. The latter of these divisions is subdivided into _Human_ anatomy, which considers, exclusively, human beings; and _Comparative_ anatomy, which treats of the mechanism of the lower orders of animals. 3. PHYSIOLOGY treats of the functions, or uses of the organs of animals and plants. Another definition is, "the science of life." 4. This is also divided into _Vegetable_ and _Animal_ physiology, as it treats of the vegetable or animal kingdom; and into _Human_ and _Comparative_ physiology, as it describes the vital functions of man or the inferior animals. 5. HYGIENE is the art or science of maintaining health, or a knowledge of those laws by which health may be preserved. 6. The kingdom of nature is divided into _organic_ and _inorganic_ bodies. Organic bodies possess organs, on whose action depend their growth and perfection. This division includes animals and plants. Inorganic bodies are devoid of organs, or instruments of life. In this division are classed the earths, metals, and other minerals. -=-=-=-=-=-=-=-=-=-=-=-=