On Expectorated Matter » 13 



*' II. The thin mucilage-like transparent matter, so 

 copiously expectorated in bronchial catarrhs. 



" III. The thick opaque straw-coloured, or white and 

 very tenacious matter, coughed up in a great variety of 

 bronchial and pulmonary affections ; especially in that of 

 tubercles. 



'* IV. Puriform matter secreted without anv division of 

 continuity, or breach of surface of the bronchial membrane, 

 very Gommonly occurring in pulmonary consumptions. 



^' V. The matter which consists of opaque viscid masses, 

 together with transprjrent fluid ; or the second sort above 

 etated. wiih nodules of the third or fourth kind. 



'' VI. Pus from the vomicae of tubercles. 



" Vil. Pus from vomicae by simple inflammation of the 

 lungs, and without tub;rrcles. 



" Other kinds of matter are occasionally coughed up, 

 such as calculi — masses of self- coagulated lymph — serous 

 fluid — blood itself — and perhaps the vascular substance of 

 the lungs ; but I do not write on these matters, because 

 they either do not belong to any particular recognized dis- 

 ease ; or they are rare occurrences in some well known 

 disease, and are too obvious to require description, 



*^ § I. Sensible or obvious Properties, 



" 1. The jelly-like matter, as already said, is excreted 

 in the best health, as well as sometimes in disease. It is 

 mostly coughed, or hawked up, in a morning soon after a 

 night's repose, during which it seems to accumulate. A 

 few masses, or nodules, then appear of the consistence of 

 jelly, and of the size of a pea to a hazle nut. It is also at 

 any time liable to be excreted, in consequence of various 

 extraneous matters irritating the fauces, to the amount of 

 a few nodules. It is of a grayish colour or inclining to 

 blue, with black specks; audit is rarely whitish in no- 

 dules. The consistence is that of jelly, but of much greater 

 tenacity. It has a barely perceivable taste of common salt, 

 or muriate of soda. It commonly floats on water, but by 

 agitation to disengage air bubbles, it sinks. It has no 

 smell. To the naked eye, or assisted by a single magni- 

 fier, this matter seldom appears uniform, but consists of a 

 mixture of opaque and transparent masses of irregular fi- 

 gures. With the compound microscope, spherical parti- 

 cles were perceived, though few in number, when duly 

 diluted, 'fhe presence of an alkali I could in no instance 

 perceive, by nicuiis of the usual test^, namely, turmeric 



paper. 



