CLASS II. 2. 2. 5. OF SENSATION. 269 



ters aflerts, that the female fex become pregnant with mod cer- 

 tainty at or near the time of menftrmtion. This is not im- 

 probable, fince thefe monthly periods feem to refemble the 

 monthly venereal orgafm of feme female quadrupeds, which be- 

 come pregnant at thofe times only ; and hence the computation 

 of pregnancy is not often erroneous, though taken from the lad 

 menftruation. See Section XXXVI. 2. 3. 



M. M. Opium a grain every night. Chalybeates in very 

 fmall dofes. Bark. Sea-bathing. 



5. Infenfibilitas artuum. As in fome paralytic limbs. A great 

 infenfibility fometimes accompanies the torpor of the (kin in cold 

 fits of agues. Some parts have retained the fenie of heat, but 

 not the fenfe of touch. See Sect. XVI. 6. 



M. M. Friction with flannel. A blifter. "Warmth. 



6. Dyfiiria infenfttiva. Infenfibility of the bladder. A diffi- 

 culty or total inability to make water attends fome fevers with 

 great debility, owing to the infenfibility or inirritability of the 

 bladder. This is a dangerous but not always a fatal fymptom. 

 SeeCJafsIII. 2.1.6. 



M. M. Draw off the water with a catheter. Afiift the pa- 

 tient in the exclufion of it by comprefling the lower parts of the 

 abdomen with the hands. Wine two ounces, Peruvian bark 

 one dram in decoction, every three hours alternately. Balfam 

 of copaiva. Oil of almonds, . with as much camphor as can be 

 diflblved in it, applied as a liniment rubbed on the region of the 

 bladder and perinaeum, and repeated every four hours, was ufed 

 in this difeafe with fuccefs by Mr. Latham. Med. Comment. 

 1791, p. 213. 



7. Accumulate alvina. An accumulation of feces in the 

 rectum, occafioned by the torpor, or infenfibility, of that bowel. 

 But as liquids pafs by thefe accumulations, it differs from the 

 conftipatio alvi, which is owing to too great abforption of the 

 alimentary canal. 



Old milk, and efpecially when boiled, is liable to induce this 

 kind of coftivenefs in fome grown perfons ; which is probably 

 owing to their not poflefiing iufficient gaftric acid to curdle and 

 digeft it ; for as both thefe procefles require gaftric acid, it fol- 

 lows, that a greater quantity of it is neceflary, than in the digef- 

 tion of other aliments, which do not previoufly require being 

 curdled. This ill digefted milk not fufficiently ftimulating the 

 rectum, remains till it becomes a too folid mafs. On this ac- 

 count milk feldom agrees with thofe, who are fubject to piles, 

 by inducing coftivenefs and large ftools. 



M. M. Extract the hardened fcybala by means of a marrow- 

 fpoon j or by a piece of wire, or of whale-bone bent into a bow, 



and 



