gg^ ON EXPECTORATED MATTER. 



' rectly as the cjuantity of spitjt or acid requisite to produce 



entire coagulation in a clear liquid; and the proportion of 

 coagulable animal oxide is, within certain limits, invcisely 

 as the quantity of spirit requisite for coagulation. 

 Opaque ropy 4.. Sulphuric ether, being in many properties analogous 

 niAt'.er. digest- ^^' ^y^l'^j^^^ of wine, I digested three hundred grains of ex- ' 

 siccated matter of the thud kind, i)age 219, iii fo"»" ounces 

 by measure of this menstruum for a month, in a warm room, 

 durino' which the vessel was often agitated. Three ounces, 

 of a black tincture were thus procured, which, on distil- 

 lation to dryness, afforded sixty-five grains of soft extract. 

 This extract became a little moist on exposure to the air, and 

 was then a little viscid. It burnt with flame like oil to 

 the state of charcoal; and this again, on burning, only 

 left two grains, of residue, which consisted of muriate of 

 soda, with indications of alkali, and phosphate of lime. 

 Re^kluum. "^^^ undissolved residue also remained sOft^ and could 



not be made brittle by evaporation. After inflammation 

 and incineration, the usHial products- were obtained as from 

 matter which had not been -digested. This menstruum 

 had therefore dissolved abundantly the oxide of animal 

 matter, and but a small proportion of the saline and earthy 

 parts. 



4. Apparently uniform expectorated matter is not of the 



j.^j-^ornTex- Same consistence through the whole mass; for a few drops 



P"c,toiate4 of the opaque kind being shaken in half a pint of rectified 



iu spirit of wine, the whole does not dissolve, but it is broken 



into small curdy particles, which fall as a sediment in a 



clear liquid, seemingly about one fourth of the original 



bulk of the matter. 



Sect. TV. With JTatcr. 



1. None of the kinds of expectorated matter are readily 



kinds treated diffusible through cold water, except the second and fourth, 



with cold wa- page 219 and 221 ; and by agitating them some fibrous 



*®'^* pieces are usually detached ; also on inspectirig the waler 



after this diffusion, it appears full of small masses, or motes. 



On standing, these suspended masses become a sediment; 



which is the case, although the proportion of expectorated 



matter be exceedingly small to that of the water. 



2. When 



tiie saine con- 



-S!>'euce 



tliroughout 



