68 INVERTENTTA. ART. V. 2. 3. i. 



continues after the pain ceafes, and efpecially if the bowels be- 

 come tumid with air, which founds on being (truck with the 

 finger, thefe patients feldom recover. Opiates given along 

 with the cathartics I believe to be frequently injurious in inflam- 

 mation of the bowels, though they may thus be given with ad- 

 vantage in the faturnine colic ; the pain and conftipation in 

 which difeafe are owing to torpor or inactivity, and not to too 

 great action. See Clafs I. 2. 4. 8. 



III. Violent errhines and fialagogues. i. Turpeth mineral 

 an the quantity of one grain mixed with ten grains of fugar an- 

 fwers every purpofe to be expected from errhines. Their ope- 

 ration is by inverting the motions of the lymphatics of the mem- 

 brane, which lines the noftrils, and the caverns of the forehead 

 and cheeks ; and may thence poflibly be of fervice in the hydro- 

 cephalus internus. 



Some other violent errhines, as the powder of white hellebore, 

 or Cayenne pepper, diluted with fome lefs acrid powder, are faid 

 to cure fome cold or nervous head-achs ; which may be effe6l- 

 ed by inflaming the noftrils, and thus introducing the fenforial 

 power of fenfation, as well as increafing that of irritation ; and 

 thus to produce violent action of the membranes of the noftrils, 

 and of the frontal and maxillary fmufes, which may by aflbcia- 

 tion excite into action the torpid membranes, which occafion 

 the head-ach. They may be ufed on the fame account in 

 amaurofis and in deafnefs. 



2. A copious falivation without any increafe of heat often at- 

 tends hyfteric difeafes, and fevers with debility, owing to an in- 

 verfionof the lymphatics of the mouth, fee Clafs I. i. 2. 6. The 

 fame occurs in the naufea, which precedes vomiting ; and is alfo 

 excitable by difagreeable taftes, as by fquills, or by naufeous 

 fmelis, or by naufeous ideas. Thefe are very (imilar to the oc~ 

 cafional difcharge of a thin fluid from the noftrils of fome peo- 

 ple, which recurs at certain periods, and differs from defective 

 abforption. 



IV. Violent diuretics, i . If nitre be given from a dram to 

 half an ounce in a morning at repeated draughts, the patient 

 becomes fickifh, and much pale water is thrown into the bladder 

 by the inverted aUon of the urinary lymphatics. Hence the 

 abforption in ulcers isincreafed and the cure forwarded, as ob- 

 ferved by Dr. Rowley. 



2. Cantharides taken inwardly fo ftimulate the neck of the 

 bladder as to increafe the difcharge of mucus, which appears in 

 the urine ; but I once faw a large dofe taken by miftake, not lefs 

 than half an ounce or an ounce of the tinfture, by which I fup- 

 pofe the urinary lymphatics were thrown into violent inverted 



motions, 



