SKIN AND MUCOUS MEMBRANES 151 



the same action and is sometimes, in addition to the previously 

 mentioned drugs, a constituent of the so-called restitution fluid. 



4. Tinctura aloes. An old veterinary digestive for granulating 

 wounds and ulcers of the hoof. 



5. Aqua ammonise. Ammonia water. Usually used in the 

 form of a liniment, 1 part to 4 of oil. A brisk epispastic in chronic 

 arthritis, inflammation of the tendons and muscular rheumatism. 



6. Tinctura iodi. Tincture of iodine. A powerful resolvent, 

 especially in periostitis, arthritis, periarthritis, tendinitis and 

 tendovaginitis. Like ammonia water, it occupies a position 

 between the rubefacients and the vesicants. 



7. Cantharis. Cantharides. The ointment* is frequently 

 used as a vesicant for horses and cattle in chronic exostoses (spavin, 

 ring bone, splint), inflammations of joints, tendons and tendon 

 sheaths, chronic rheumatic lameness, contusion swellings, etc. 

 Cantharides plaster* and cantharides oiF have the same action, 

 but tinctura cantharidis and collodium cantharadatum are some- 

 what weaker and are employed in canine practice. 



8. Oleum sinapis volatile. Oil ^ of mustard. A valuable 

 derivant in pleurisy, pneumonia, peritonitis and meningitis; used 

 on horses in 4 to 6 per cent, alcoholic solution; cattle, 10 to 20 per 

 cent.; dogs, 2 per cent. Mustard plasters are also frequently used. 



9. Hydrargjrri iodidum rubrum. Biniodide of mercury. A 

 most powerful epispastic; specific for long-standing inflammations 

 of the joints, bones and tendons, especially spavins, ring bones, 

 splints, galls and induration of tendons; used on horses in concen- 

 trations of 1 : 4 to 5 of lard or cantharides ointment. Potassii di- 

 chromas has the same action (1 : 10 to 20 for horses). 



10. Antimonii et potassii tartras. Tartar emetic. A derivant 

 for cattle and swine in ointment (1 : 4). 



[* Powdered cantharides 2 parts, digested for ten hours with 2 parts each 

 of peanut oil and lard; yellow wax 1 part, turpentine 2 parts, mixed; euphor- 

 bium 1 part.] 



p Colophony and turpentine, 6 parts of each, melted together; add, after 

 partial cooling, powdered cantharides 3 parts, powdered euphorbium 1 part. 



» Cantharides 3 parts, digested ten hours with 10 parts of peanut oil; 

 express and filter.] 



