FRACTURES— WOUNDS— ANESTHESIA 213 



of the doiuestie fowl. The ])irds were ehh)i'oforiiie(l and the 

 bones fraetured and set while the birds were still under anes- 

 thesia. The metatarsus and ulna were selected. The appli- 

 ance that was used to hold the bones in place was cotton, one 

 inch cloth bandage, wooden splints and glue. At the end of 

 each experiment the bird was chloroformed and the bone 

 removed. After a physical examination, the l)one was sec- 

 tioned longitudinally, ])hotographed and the lesion of one-half 

 cut out and placed in ten per cent hydrochloric acid solution 

 for forty-eight hours for decalcification, and then passed 



y^^m^ 



Fig. 75. Sections Through Bones at Different Stages of Fractures. 



1, five days standing: 2 and 3, tliirteen days standing. Note the provisional 

 plug and provisional callus. 



through three chringes of absolute alcohol: then alcohol and 

 ether equal parts; then embedded in celloidin and sectioned. 

 The sections were stained in hematoxylon and eosin and clari- 

 fied in oil of cedar or beechwood creosote, and mounted in 

 balsam for microscopic stud3\ 



In a study of a fracture of the metatarsus of a single comb Khode 

 Island Red of eight days' standing, the following picture presented 

 itself. The gross specimen showed a mottled reddish white zone in 

 the region of the fracture indicating that immediately following the 

 fracture there was an extravasation of blood which had collected 



