£14 TREATMENT OF 



phur blended with mercury, and triturated togetliei , 

 has also been found useful in the cases abovemeu- 

 tioned : the black sulphureted mercury fie mercu- 

 re sulfure noirj has been given from a grain, to ten 

 grains, twice a day. (102) In the administration 

 of the mercurial preparations, it is necessary to take 

 care that they do not readily provoke salivation, 

 which by debilitating the stomach and bowels, 

 might produce eftects contrary to those intended. 



The dose should be insensibly augmented, and 

 the mercurial preparation suspended so soon as the 

 patient feels a heat in his gums, as I am accustom- 

 ed to do in the treatment of general venereal dis» 

 €ases.(!03) 



^ CXXXIII. Petroleum, At Montpellier, 

 petroleum is famous against worms ; it is common- 

 ly called rock oil, red petroleum, and naphto-pe- 

 troleum. Dr. Hasselquist affirms also that in E- 

 gypt* the taenia being common, the inhabitants re- 

 lieve themselves by means of petroleum taken in 

 water in the dose of twenty or thirty drops each 

 time.(104H) A physician liaving for a long time 

 prescribed various medicines without success, to a 

 man suffering with taenia, at length ordered him 

 half a drachm of petroleum mixed with an equal 

 quantity of oil of turpentine, to be divided into three 

 doses ; the patient, already fatigued with remedies, 



* Dr. Larrey, who has so well described the diseases of E- 

 gypt, assures us tliat the taenia is rarely seen there; and that 

 the ijihabitants aiid physicians do not know the petroleum. 



F. Trs. 



