S24 ON EXPECTORATED MATTER. 



cesslve portions of water, the whole, as far as I could judge* 

 of a c;-iven quantity of the curd might be diffused to form 

 a whltibh Hquid; which on evaporation to dryness appeared 

 to afford a residue of the same kind (except in containing a 

 svnalier proportion of saHne substances), as the milky liquid 

 which was separated from the curd on the coagulation of 

 the expectorated matter. 



The second kind, called mucilagelike transparent mailer ^ 

 does not afford curdy masses at the temperatures above- 

 luentioned ; but its viscid texture is destroyed, and it be- 

 comes a wheylike, or fomewhat milky liquid ; and, on exa- 

 mination with a magnifying glass, it appears full of curdy 

 piarticles. After this agency of caloric, the expectorated 

 matter is much less prone to putrefaction, 



Dbtrfred fluid. * 2. Distillation of the expectorated matters to dryness 

 afforded a particularly limpid wsiter, which had a peculiar 

 smell, but no iuipregnation with ammonia; or with any 

 other substance which could be detected, except a little 

 carbonic acid. 



Re'jiduum. The residuary matter, in a brittle state of dryness, afford- 



ed by evaporation, varied between two and a half and ten 

 percent of the expectorated substances. The second kind 

 yjelded from one thivty-fd'th to one forty-fifth of its weight 

 of brittle residue. The first kind afforded from one twen- 

 tieth to one twenty-fifth of residue. The third kind aflf'orded 

 very different proportions of solid residue, accordiug to its 

 consistence, viz. from one tenth to one eighteenth of its 

 weight. The fourth kind gave from one twelfth to one four- 

 teenth of brittle matter. The fifth kind yielded very difi^^r- 

 ent proportions of residue, according to the very different 

 proportions of transparent a-.id opaque matter, of which 

 it consisted — it varied between one eighteenth and one thir- 

 tieth. . ' ' 



Attracted ^' All these exsiccated substances on exposure to ;)ir 



inoistiire from rrvew more or less moist, or at least were no longer brittle; 



pheie. ^^^^ became somewhat soft, and proportionately to the state 



of moisture, were augmented" In weight. The thinner the 

 expectorated matters, the moister, and the greater increase 

 of weight they generally experienced. But parcels of the 

 same consistence from different patients sometimes differed 



much 



