DISEASES OF THE AIR-PASSAGES OF HORSES. 399 
cessful are those performed by Professor Dick upon a horse ; by 
Mr. Cheetham, also on a horse; and by Mr. W. Vine, of Horse- 
bridge, on a cow. 
[The conducting of this operation reflects much credit on Mr. 
Dycer; but oesophagotomy is not an operation of such rare oc¬ 
currence as Mr. D. imagines. The writer of these observations 
claims two, and each of them successful attempts*. In his com¬ 
munications with his professional brethren, he thinks that he has 
met with a dozen more; and a very considerable number are 
recorded in the records of our foreign brethren. We say not 
this in disparagement of Mr. Dycer, but in justification of those 
who have done our profession some service.—Y.] 
DISEASES OF THE AIR-PASSAGES OF HORSES. 
By Mr. PRITCHARD, V.S., Wolverhampton, 
[Continued from p. 345.] 
Bronchitis, in its asthenic form, is frequently consecutive of 
glanders; strangles, and epizootic catarrh. These diseases are 
common states of complication, in which asthenic bonchitis pre¬ 
sents itself in practice. But few cases of glanders running their 
course in a rapid and destructive procession, terminating fatally, 
are unaccompanied by bronchial disease of the asthenic kind. 
Acute glanders, as it is commonly designated, is a disease truly 
asthenic in character. There is debility of the functions of the cir¬ 
culating systems and fluids, in the arterial and venous, in the lym¬ 
phatic and absorbent; in the assimilating, digestive, and secret¬ 
ing, as well as the respiratory function. There is debility of the 
membranous, muscular, and osseous tissues; there is acute and 
complicated debility; and, although apparently absurd, there are 
manifestations of great depression of vital power and resistance, 
co-existent with morbidly-excited vascular action. There is 
debility of the whole frame, originating in the chief factors of 
life, viz., the ganglial and vascular systems. 
Among the several anrl particular tissues which suffer these 
effects of debility, rank first in gradation the mucous membranes. 
Their functions are retarded ; there is diminished secretion or im¬ 
perfect excretion of mucus ; or it is increased in quantity, from 
relaxation and loss of tone of the vessels; or vitiated from other 
VtTKRINARlAN, VOl. i. 
