USES OF ARSENICAL COMPOUNDS 175 



For the removal of malignant growths or warts: 



Arsenl trioxidi. 



Pulveris acaciae aa gr.lxxv. 



Cocainae hydrochloridae gr.xxx. 



Glycerini aa TTLxxx. 



M. et ft. paste. 



S. Apply externally one-quarter inch thick, cover 

 with patent lint and continue application 24 to 

 48 hours, then remove and apply poultice to 

 remove slough in 5 to 10 days. 



Arsenic has been the principal constituent of so-called "sheep-dips" 

 employed to kill ticks and other parasites in the wool. Finlay Dun rec- 

 ommends 2^2 lbs. of arsenous acid with an equal amount of pearl ash, 

 soft soap, and sulphur, dissolved in 10 gallons of boiling water and added 

 to 90 gallons of cold water. This quantity will suffice for dipping 100 

 sheep. The sheep are submerged, except their heads for a few seconds, . 

 and placed on a grating to drain into a tub, from which the water flows 

 back into the first receptacle. The excess of water in their fleeces is 

 squeezed out with the hands and a scraper. Sheep and other animals 

 have been poisoned after dipping, by eating grass and fodder on which 

 they have drained; therefore the sheep should always be kept on clean 

 floors or yards in the open air and sunlight until they have become 

 thoroughly dry. The lime and sulphur dip recommended by the U. S. 

 Ag'ric. Dep't, or the tobacco and sulphur dip, to be found under Scab 

 (p. 606), is as effective and safer. Arsenic and tar solution is most effi- 

 cient for destroying ticks and preventing Texas fever in cattle (see p. 

 684). 



Uses Internal. — ^Arsenic is of the greatest service in the treatment 

 of indigestion in horses associated with malnutrition and staring coat, 

 as follows: 



Arseni trioxidi 3i. 



Pulveris nucis vomicae giv. 



Sodii bicarbonatis Sviii. 



M, et divide in chartulas No. xxx. 



Sig. One powder on the feed 3 times daily. 



Arsenic is also of value in atonic diarrhea, and is used in both the 

 serous and dysenteric varieties. In diminishing tissue change, and in 

 acting as a blood tonic, arsenic is believed to improve the condition, en- 

 durance, and wind in horses, and is popularly prescribed by dealers and 

 others. 



The classical case of the arsenic-eating peasants of Styria seems to 

 corroborate this view. These people appear to be very robust and 

 healthy. Five grains of arsenic was given experimentally to one of them 

 without producing any untoward effect. Arsenic seems to influence favor- 

 ably diseased mucous membranes of the respiratory tract, to improve 

 their nutrition, and hasten absorption and repair in diseases of the air 

 passages. Coryza, ozena, chronic coiigh, asthma, emphysema and "broken 

 wind" are greatly benefited by a course of arsenic, and in chronic condi- 

 tions the treatment should be sustained for months in small doses. 



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