806 WEST OP ENGLAND VETERINARY MEDICAL ASSOCIATION. 
Sa da 
By sundry Expenses on be¬ 
half of Association, from 
the year 1868 to the year 
1869 . . . . 9 14 10 
Balance in hand . . 21 7 5 
£31 2 3 
Cr. £ s. da 
By Bank Order from R. H. 
Dyer, November 3, 1868 16 15 3 
By Subscriptions, from the 
year 1868 to the year 
1869 . . . . 14 7 0 
£31 2 3 
The financial report having been adopted, 
The election of officers for the ensuing year took place. T. D. Broad, 
Esq., of Bath, being unanimously installed as president; Messrs. T. 
Barrel!, J. M. Broad, and E. Drake, as vice-presidents ; Messrs. W. 
Kaddell and J. M. Broad, as auditors ; the ex-president as hon. treasurer ; 
and Mr. J. A. Collings, as hon. secretary, as heretofore. 
The Hon. Sec. then proceeded to read a short paper on the “ Pathology 
of the Chronic Diseases of the Respiratory Tract of the Horse.” 
The purely chronic diseases of the respiratory tract I propose to name 
as four, viz. roaring, broken wind, thick wind, and chronic cough. There 
are, doubtless, many minor diseases which may be legitimately classed 
as such, but to extend our observations to all of them would occupy 
much more time than we can, on the present occasion, afford. The two 
first named of these (roaring and broken wind) are by far the most in¬ 
teresting, and are, in my opinion, intimately allied to one another, as 
regards the structure primarily affected; what I refer to is purely and 
solely alteration and consequent paralysis, or vice verm^ of nerve-tissue. 
In pursuing the character of this disease of roaring and its various 
modifications (as whistling, &c. &c.), we must review the causes. It is 
undoubtedly brought about by many causes, but where it has a chance 
origin once it follows the routine to be presently described one-hun¬ 
dredfold. Glancing at these occasional causes we find them to 
include— 
1. Disease of bones of nasal chambers. 
2. Depression of nasal bones from external mechanical injury. 
3. Congenital malformation of nasal chambers. 
4. Tumours, either fibrinous or osseous, secreted accumulations, &c., 
within chambers. 
5. Thickening of arytenoid cartilages. 
6. Deformity of trachea. 
7. Paralysis of portio-dura, the motor nerve of face. 
8. Aneurism of adjacent vessels. 
9. Enlarged bronchial lymphatic glands; and, lastly, in connection 
with the chief cause. 
10. Pressure produced by tight reining. 
11. Exertion and fright. 
As such as these exist in extent or intensity so may the various morbid 
sounds constituting the modifications of roaring be apparent. But 
arriving at the main one, viz. atrophy of certain laryngeal muscles on the 
left side, and the consequent collapse of a portion of this cartilaginous 
box, the result of paralysis of its suppliant nerve,—this is the ultimate 
point; how it is produced now becomes our duty to discover. Prior to 
restoring the action of any piece of mechanism, it is absolutely essential 
that we be well versed in the relative positions and attachments of its 
diflerent component parts, so it is here we must review the anatomy of 
these^ structures before entering upon the nature of the disease in 
question. The nerve which supplies these muscles we call the left 
