15° 



Journal of Agriciiliiire. 



[9 March, 1908. 



DISEASES OF FARM ANIMALS. 



{Continued from page 6j.) 



S. S. Cameron, M .R.C.V.S., Chief Veterinary Officer. 



VII.— ACCIDENTS AND INJURIES. 



FRACTURES— cwi^wmef?. 



Broken Arm.— Fracture of the bone of the arm (the humerus) is fairly 

 common in horses (see Fig. 3) while fracture of the fore arm (the radius 

 and ulna) occurs most frequently in cows and the appearance presented by 

 the bones in the accompanying illustration (Figs. 10 and 11) is not uncom- 

 monly met with in cattle practice. The illustration is from a specimen 

 kindly lent by Mr. W. A. N. Robertson, G.iNI.V.C. , assistant veterinary 

 officer, Department of Agriculture. 



Fij,'. 10. Broken fore arm bones (radius 

 and ulna) showing attempt at union 

 in displaced position, rendering the 

 limb short. 



Fig. II. Broken fore arm bones (radius 

 and ulna) as in Fig. lo, but placed 

 in the proper ]>osition for effective 

 union. 



Split Pastern. — This has already in part been dealt with in the 

 Chapter on Lameness (see page 371)- It often occurs without any appar- 

 ently adequate cause. A false step when galloping on hard ground or 

 over crab-holey country or when turning a sharp bend is a frequent cause. 

 It is usually the long pastern bone that is concerned and the fracture is 

 most often a perpendicular one. As a rule split pastern is not a very 

 serious affair. The part needs to be stiffly bandaged and kept completely 

 at rest. With such treatment in ordinary cases recovery may be expected 

 in three weeks or a month. 



Broken Pelvis. — The pelvic bones may sustain fracture at almost any 

 part as a result of a fall or violent blow. The most frequent situations of 

 pelvic fractures are shown in the accompanying sketch (Fig. 17). The most 



