PROGRESS OP VETERINARY SCIENCE AND ART. 575 
lesions are not rare, and says, that about twelve years ago 
he observed in a horse the following: lstly, a rupture of 
the flexor brachii on both limbs ; 2dly, a fracture of both the 
first ribs; 3dly, and lastly, fracture of the sternum between 
the first and second ribs. The fractures were consolidated, 
hence the lesions old. — e Bulletin de la Soc. Imp . et Cent . de 
Med . fit. I p. 470, of the ( Recueil ' for June, 1855. 
Extensive literary research and practical observation prove, 
that affections of the shoulder, independent of accident, are 
extremely rare. Fractures of the scapula and humerus, 
lacerations of muscles or ligaments, the results of penetrating 
wounds or violent contusions, are of no uncommon occur- 
rence, and in such instances seldom is it that doubts arise in 
forming a diagnosis. I have, however, drawings in my pos- 
session, which prove that even traumatic shoulder lameness 
may be mistaken, and animals in an incurable state allowed 
to live. In this category I class four cases of necrosis of the 
scapula, necrosis which, in two instances, had destroyed all 
but the whole bone, another hollow one, containing the 
remains of its predecessor, having been formed. One of these 
extraordinary pathological specimens may be seen in the 
Royal Veterinary College, others exist in Alfort, and lesions 
of the shoulder-joint of a traumatic character may be seen in 
most museums. Fractures of the humerus, with displace- 
ment and awkward consolidations, or bony vegetations around 
the head of the humerus; as in Vilatte’s case, are amongst 
the cases which I have witnessed, and they produce lameness, 
sometimes associated with some obscurity, especially when all 
history of the case is wanting. It is much to be desired that 
facts be contributed to this all-important point in veterinary 
surgery, and for this reason I have reproduced the above. 
They are peculiarly interesting for their novelty and bearings 
on practice, and it is to be hoped they will not lie long alone; 
but beingfollowed up by others, something maybe learned with 
respect to the long-debated question of shoulder-lameness. 
Disease of the Sesamoid Bones of the Horse. — 
Mascher, an army veterinary surgeon in Hanover, praising 
the labours of Gurlt and Hertwig, in forwarding the study of 
pathological anatomy, says, that he is desirous to call attention 
to certain lesions which have not been described, implicating 
the sesamoid bones of the horse. 
The first instance of the above disease which fell under 
Mascher’s notice, was that of a horse, several years since, 
affected with a chronic lameness of the fore limbs, for which 
he had been variously treated by several veterinary surgeons. 
The horse was sent out to pasture, and just in that year there 
was considerable wet weather; his master was prevented 
