XX11 LIST OF ILLUSTRATIONS. 



FIG - PAGE 



27. Gelatinous nerve-fibres, ...... 103 



28. Ganglion corpuscles, after Valentin, ..... 104 



29. Stellate or caudate nerve-corpuscles, after Hannover, . . 104 



30. Circle of Willis, / . . . . " . .106 



31. Sinuses of the base of the skull, ..... 108 



32. Capillary net-work of nervous centres, after Berres, . . 108 



33. Distribution of capillaries at the surface of the skin of the finger, after 



Berres, ........ 113 



34. Brain of squirrel, laid open, after Solly, . . . .115 



35. Brain of turtle, after Solly, . . . . . .115 



36. 37. Brains of fishes, after Leuret, . . . . .115 



38. Vertical section of epidermis, from the palm of the hand, after Wilson, 123 



39. Surface of the skin of the palm, showing the ridges, furrows, cross- 



grooves, and orifices of the sweat-ducts, Todd and Bowman, . 123 



40. Vertical section of the cuticle from the scrotum of a negro, Todd and 



Bowman, ........ 124 



41. Section of the skin, . . . . . . .124 



42. Papillae of the palm, the cuticle being detached, magnified 35 diameters, 125 



43. Sections of hair, ....... 126 



44. Thin layer from the scalp, ...... 127 



45. Magnified view of the root of the hair, Kohlrausch, . . . 127 



46. Section of the skin on the end of the finger, Todd and Bowman, . 130 



47. A. Separated epithelium cells from mucous membrane of the mouth. 



B. Pavement-epithelium of the mucous membrane of the smaller bron- 

 chial tubes, ........ 131 



48. Tesselated epithelium, ....... 132 



49. Scales of tesselated epithelium, after Henle, .... 132 



50. Diagram of the structure of an involuted mucous membrane, showing 



the continuation of its elements in the follicles and villi, Todd, . 133 



51. Cylinders of intestinal epithelium, after Henle, . . . 133 



52. Capillary net-work at margin of lips, after Berres, . . . 139 



53. Front view of the upper surface of the tongue, as well as of the pala- 



tine arch, Wilson, . . . . . . - 145 



54. View of a papilla of the smallest class, magnified 25 diameters, Todd 



and Bowman, ........ 145 



55. Vertical section of one of the gustatory papillae of the largest class, 



showing its conical form, its sides, and the fissure between the dif- 

 ferent papillae, Todd and Bowman, ..... 146 



56. The hypoglossal; lingual branch of fifth pair; glosso-pharyngeal and 



deep-seated nerves of the neck, ..... 146 



57. Papillae of the tongue, Todd and Bowman, .... 147 



58. Vertical section of the middle part of the nasal fossse, giving a poste- 



rior view of the arrangement of the ethmoidal cells, &c., . . 158 



59. View of the olfactory nerve, with its distribution on the septum nasi ; 



the nares divided by a longitudinal section made immediately to the 



left of the septum, the right nares being preserved entire, . . 159 



60. A portion of the pituitary membrane of the nasal septum, magnified 9 



times, showing the number, size, and arrangement of the mucous 



crypts, . . . . . . . . 160 



