264 



THE FAECES. 



mashed potato, 50 grams milk, 10 grams butter). Also one-half 

 liter of milk and 50 grams zwieback. 



For supper, 7 o'clock, the same articles as for breakfast. 



Having familiarized one's self with the degree of digestion of 

 muscle, starch and fat in a normal person, we are in a position to judge 

 of the state of assimilation in a patient. 



We judge of muscle digestion by the intactness of the striations. 



FIG. 82. Familiar objects in feces. i, muscle fibres; 2, soaps; 3, vegetable 

 hairs; 4, fatty acid crystals projecting from neutral fat globule; 5, soap crystals 

 with leukocytes; 6, stone cells; 7, vegetable spirals; 8, pallisade cells from bean; 

 9, parenchyma of vegetable tissue; 10, u, 12 and 14, vegetable cells; 13, pollen. 



If a muscle remnant is only a homogeneous yellowish particle, it shows 

 satisfactory digestion. If it is rectangular, with well-defined cross 

 striations, it shows poor digestion for meat. A loopful of faeces should 

 be smeared into a drop of Lugol's solution for starch-digestion determi- 

 nation. Normally there should be no blue-staining starch granules 



