Sect. XXVIII. 2. ABSORBENTS. 237 



found by the finking of the water in the tube 1 ?, that the upper 

 Surfaces exhaled lefs by half than the under Surfaces. 



Both the dark-eyed patients, which are affected with pulmo- 

 nary ulcers from deficient venous abforption, as defcribed in Sec- 

 : XXVII. 2. and the light-eyed patients from deficient lym-? 

 ptiatic abforption, which we are now treating of, have generally 

 large apertures of the iris 5 thefe large pupils of the eyes are a 

 common mark of want of irritability ; and it generally happens, 

 that an increafe of fenfibility, that is, of motions in confequence 

 of fenfation, attends thefe coriftitutions. See Sect. XXXI. 2. 

 "Whence inflammations may occur in thefe from ftagnated fluids 



re frequently than in thofe conftitutions, which polTefs more 

 irritability and lefs fenfibility. 



Great expectations in refpe£t, to the cure cf confumptions, 

 as well as of many other difeafes, are produced by the very in- 

 genious exertions of Dr. Beddoes ; who has eftablifhed an ap- 

 paratus for breathing various mixtures of airs or gafles, at the 

 hot- wells near Briftol, which well deferves the attention of the 

 public. 



Dr. Beddoes very ingeniously concludes, from the florid col- 

 our of the blood of Confumptive patients, that it abounds in ox- 

 ygene 5 and that the rednefs of their tongues, and lips, and the 

 fine blufh of their cheeks, fhew the prefence of the fame prin- 

 ciple, like flefh reddened by nitre. And adds, that the circum- 

 ftance of the confumptions of pregnant women being flopped 

 in their progrefs during pregnancy, at which time their blood 

 may be fuppofed to be in part deprived of its oxygene, by ox- 

 ygenating the blood of the foetus, is a forcible argument in fa-? 

 vour of this theory ; which muft foon be confirmed or con- 

 futed by his experiments. See EfTay on Scurvy, Confumption, 

 &c. by Dr. Beddoes. Murray. London. Alio Letter to Dr, 

 parwin by the fame. Murray. London. 



SECT. 



