LANOLINE. 625 



Tincture of Iron. 



The strong tincture of the perchloride of iron {liquor ferri 

 perchloridi fortior) appears to act, when given internally, as an 

 astringent to the walls of the blood-vessels; hence its use in 

 bloody urine, etc. In such cases, it can be given in one-third 

 drachm doses three times a day. For diarrhoea, give in a pint 

 of water, 1 drachm twice a day, combined with 1^ ounces of 

 laudanum. Externally, it is useful for stopping bleeding. 



The ordinary tincture of iron (tincture of steel) is made by 

 mixing 1 oz. of the strong tincture with 3 oz. of distilled water. 



Kerosene Oil. 



See " Paraffin Oil " (p. 633). 



Lanoline 



is the grease obtained from sheep's wool. It forms a useful 

 vehicle for applying medicines to the skin. For its action as a 

 hoof ointment see p. 204. 



Lard 



is one of the best materials for making up ointments. Its 

 tendency to become rancid can.be corrected by melting it over 

 a water bath and adding a fiftieth part of benzoin. Pure 

 benzoated lard can be obtained ready made from any chemist. 

 The usual adulterations of lard are water, salt, starch, and cotton 

 seed oil. Mutton, venison, or beef kidney fat, horse fat, lanoline, 

 goose grease, or vaseline, may be used instead of lard. To give 

 any of these consistency in hot weather, we can mix with them 

 a little beeswax. 



Laudanum. 



See "Opium, Tincture of" (p. 633). 



Lime. 



One part of lime is soluble in 1,500 parts of water. This 

 solution (lime water) is beneficial to foals suffering from a 

 deficiency of bone-forming material, and in diarrhoea when acidity 

 is present. It may be given to yearlings in ^-pint doses three 

 times a day. 



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