| Fig. 202. Fig. 203. The screw thread for small bolts is represented by thick and thin lines, such as was shown in Figure 152, but in larger sizes; the angles of the thread also are drawn in, as in Figure 202, and the method of doing th... Read more of Screw Threads And Spirals at How to Draw.ca | InformationalPrivacy |
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Poll-evilThis is a disease the mule more than all other animals is subject to. This is more particularly so with those brought into the service of the Government unbroken. It will be very easily seen that the necessary course of training, halter-breaking, &c., will expose them to many of the causes of this disease. Aside from this, the inhuman treatment of teamsters, and others who have charge of them, frequently produces it in its worst form. It begins with an ulcer or sore at the junction where the head and neck join; and from its position, more than any other cause, is very difficult to heal. The first thing to be done, when the swelling appears, is to use hot fomentations. If these are not at hand, use cold water frequently. Keep the bridle and halter from the parts. In case inflammation cannot be abated, and ulceration takes place, the only means to effect a cure, with safety and certainty, is by the use of the seton. This should be applied only by a hand well skilled in the use of it. The person should also well understand the anatomy of the parts, as injuries committed with the seton-needle, in those parts, are often more serious and more difficult of cure than the disease caused by the first injury. Next: Fistula Previous: The Tongue
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