LABORATORY EXERCISES 



415 



Page 265. The leg of a sheep or pig, with muscles removed, is good 

 for showing essential features of a joint. An articulated human skele- 

 ton should be referred to constantly in connection with discussion of various 

 sorts of joints. 



Page 271. In discussing and illustrating the matter of shoes, reference 

 may well be made to the Munson last, after which pattern all U. S. Army 

 shoes are made. Aside from allowing plenty of room for the small toes, 

 the inner side of the shoe should be 

 so shaped that a line drawn lengthwise 

 through the middle of the big toe and 

 continued backward will pass through 

 the middle of the heel. Plenty of space 

 in front of the toes is also provided. 



The endeavor to make the foot seem 

 short and small by wearing high heels 

 can be shown by the use of board 

 drawings. The following line drawings 

 are easily made : 



Line A-B= apparent length of foot. 

 Line A-C= actual length of foot. 



The lines should pass through the long, 

 mid-axes of the big toes and the middle 

 of the heels. 



CHAPTER XVII 



Page 276. Preparations of striped muscle make satisfactory material 

 under high powers of the microscope. If fresh muscle can be separated 

 into fine enough shreds, stria? show fairly well. Muscles of an insect. 

 e.g, grasshopper, are especially good for this. If a section of tongue is 

 available, it can be used in this connection ; the muscle fibers running in 

 different directions are strongly striped. 



