152 



Journal of Agriculture. 



[9 March, 1908. 



permanently " dropped." This is because of muscular action pulling down 

 the broken bone and preventing it resuming its natural position (see 

 Fig. 18.) 



Pig. 17. Pelvis bone of horse, showing most frequent seats of fracture. — i. 

 Fracture of point of hip (anterior spine of ilium) or " dropped hip." 2. Frac- 

 ture of croup bone (posterior spine of ilium). 3. Fracture of shaft of ilium or 

 " broken hip bone." 4. Fracture of pubis bone. 4A. Fracture of shaft of 

 ischium bone. 5. "Broken hip joint" or fracture into socket of hip joint [aceta- 

 bulum). 6. Fracture of point of rump bone (ischhim) — " Broken rump " or "Flat 

 rump." 7. Longitudinal fracture of floor of pelvis. (After Dollar.) 



Fig. 18. "Dropped hip." (After Hayes.) 



