160 BLISTEES. 



SO as to form a thick kind of paste ; then add to the mass from 

 one to two ounces by measure of spirits of hartshorn, and as 

 much more hot water as will sitffice to reduce the paste-like 

 state of the mustard to the consistence of mustard usually 

 taken with roast beef ; then procure ^ large sponge, which dip 

 in hot water, and with it rapidly and thoroughly wet the hair 

 on one or both sides of the chest, as the case may require, 

 then freely and vigorously rub the mustard upon the parts 

 made wet. Shoidd the operator find the mustard to work dry, 

 he must wet his hands in hot water, and apply a portion of the 

 liquid to the surface of the hair, and then go on as before. 

 The operation, if performed upon both sides of the chest, 

 should occupy at least from fifteen to twenty-five minutes. 

 Should the mustard fail to produce the desired result, which it 

 generally does upon the first application, repeat the process a 

 second or even a third time, at intervals of about two hours. 

 The second application will not require so much mustard, as 

 the hair will already be saturated with it, and the skin excited 

 and more sensitive to its effects. 



When the sides become sore, and the swelling of the skin 

 excessive, or to the extent desired, the further application of 

 the irritant should be withheld, oth*wise the tissues of the 

 part may slough and leave a raw surface, and ultimately a 

 blemish which may be permanent. By carefully noting the 

 effects of the mustard, and by applying it at proper intervals, 

 with or vrithout the hartshorn, and in greater or lesser quan- 

 tities according to the state and requirements of the case, 

 the effects of the medicament can be easily regulated with the 

 utmost nicety. 



In cases where the mustard has been regularly applied, and 

 where the article is known to be genuine and powerful, and yet 

 where little or no effect results from its application, it is 



