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COLORED FIGURE i. SECTION OF SKIN (diagram, enlarged 25 times). On the left 

 the connective tissue fibers of the true skin are shown. 



in cutis (c), or dermis, find capillaries, nerve fibers, fat cells, /7t^ sweat glands and ducts, four 

 oil glands (two in section), two hairs, three nerve papillae, five papillae containing capillaries, 

 t2uo muscles for erecting hairs. In epidermis find flat cells, round cells, and pigment cells. 



FIG. 2. WHERE 

 THE FOOD is 



ABSORBED (villus Of 



intestine). 



FIG. 3. WHERE 



THE FOOD is 



USED (cells with 



lymph spaces). 



i,j, jaws; ol, nerve of smell; 

 op, nerve of sight : ^, 

 brain; /, tongue; ep, epi 

 glottis; oe, gullet; 

 th, thymus gland; 

 Ig, lung; //, heart; 

 /, liver; g, stom- 

 ach; s. spleen; 

 /, pancreas; 

 k, kidney; d. 

 diaphragm; 

 m, muscle; 

 it, bladder; 

 ch, spinal 

 cord; 7', ver- 

 tebrae. 



/fi/sc/e ce//s 



t ///SI Itftlffff af , 

 ////////// .','> ' .-. 



FIG. 2. 



FIG. 4. - 



IDEAL SEC- 

 TION OF 

 MAMMAL. 



Compare with organs of 

 man (colored Fig. 6). 



