Animals. 



confusing and evanescent impression on the pupil's mind. 



As a simple means for bone and joint study, and as a useful 



bit of apparatus in any school, 

 the following suggestions are 

 offered : 



Feet of Fowls. 

 These are easily obtained 

 from city butcher, or board- 

 ing-house cook, or farmer's 

 wife. 



I. Give a short lesson on 

 the feet, calling attention to 

 scales, their shape, size, color ; 

 the nails ; the shape and posi- 

 tions of toes. Pull the cords 

 at the upper end, showing that 

 these cords extend to the toes 

 and move them. This will 

 give them an idea of the use of 

 the tendons. 



II. Place the feet in a pan, 

 cover with water, and boil for 

 some time. Give each foot 



FIG. ^.-TURKEY'S FOOT. thus boiled tQ a pupil> Qr let 



two pupils work together. If the feet are well 

 cooked, the flesh is easily removed. Let the 

 pupils clean the bones carefully, laying each 

 bone by its mate when cleaned. Place the 

 bones on a card or board to dry. When dry, 

 have the pupils arrange them in their order. 

 Bring out the fact that each bone fits its 

 neighbor at the joint. No other bone will fit 

 exactly. Notice that the bones are grooved 

 at the joints so as to permit motion in two 

 directions only. This is therefore called a 

 hinge-joint. 

 III. Lastly, use glue or strong mucilage and have the 



FIG. 24. QUAII/S 

 FOOT. 



