DISEASES OF THE RESPIRATORY ORGANS. 



759 



Fro. 991. — Hypodermic Syringe. 



neck stretched out. Towards the upper part, where the windpipe 

 comes* near the surface, a longitudinal incision,, about two inches in 

 length, is made through the skin, exposing the windpipe. A tenac- 

 ulum (Fig. 987) is then pushed through the tissue uniting the 

 rings, and enough cut out with the scalpel (Fig. 988) to admit the 

 introduction of acurved 



tube. (Fig. 989.) This - ^ ^ m 



is held in its place by a ^^^^I^So^nmBESSSS^L^SflLW 

 strap round the neck, 

 as shown in Fig. 990. 

 It must be removed 

 every day, and the parts 

 cleaned with some an- 

 tiseptic lotion, as a solution of permanganate of potash. This will 

 relieve the difficulty in breathing, but the patient may be unable to 

 swallow the medicines. In this case, resort must be had to the 

 endermic method, and the remedy injected beneath the skin,, by 

 means of special syringe. (Fig. 991.) 



Sometimes it becomes necessary to inject the medicine at once 

 into the circulation. For this purpose, the jugular vein is opened, 

 and the ordinary glass syringe may be used. A better form of' 

 instrument is that shown in Figs. 992 and 993. It consists of a fun- 

 nel, provided with a stop-cock to control the passage of the fluid. 

 To the lower end is attached a piece of flexible tubing about a foot 

 long, and terminating in a thin ivory or bone pipe three inches 

 long. The fluid must be very ' 



dilute, a* the temperature of the 

 blood — 98° F. — and not admin- 

 istered in too large quantities at 

 once. Any solid particles will pass 

 to the lungs, and produce conges- 

 tion ; therefore their presence must 

 be carefully guarded against. 



The flesh of animals dying of 

 this disease is very poisonous, and 

 great care must be used in hand- 

 ling the carckss. It is better to 

 bury deeply, without removing the 

 hide. 



BRONCHITIS. 



This is an inflammation of the 

 mucous membrane of the bron- 



Fio. 992: Fig. 993. 



Funnel for Injecting Medicine into the 



Circulation. 



