204 ON THE PATHOLOGICAL MORPHOLOGY OF SOME FLUIDS. 



granulated particles mixed with the white mucus ; or, yellowish -white 

 oval lenticular particles, whose longest diameter scarcely exceeds the 

 half of a Viennese line adhering to the bottom of the smooth vessel in 

 which the sputa are accumulated. 



It is seen by the microscope, that these yellowish- white particles are 

 a compound of roundish or ovate lenticular spheres, gashed globules, 

 and mucus. The lenticular spheres are from the same size to ten 

 times larger than the globules of pus ; they present, for the most part, 

 a smoothish surface, and in almost all, obscure striae, running concen- 

 trically, are detected. Plate 6, fig. 89. Some of these spheres are 

 fissured once or oftener from the periphery towards the centre, the broad- 

 est part of the fissure continually decreasing, until it altogether ceases 

 far in towards the centre. Plate 6, fig. 90. They are easily broken, 

 and break with angular margins, Plate. 6, fig. 91 ; whereas, if one look 

 closely at the face of the fracture, he will perceive the lenticular sphere 

 to be composed of concentric lamellae, resembling a bulb of garlic. 

 Plate 6, fig. 92. 



The lenticular spheres fall to the bottom in distilled water. Dried 

 for a long time in air, they are not changed, with the exception of a 

 slight diminution of their diameter. 



They are not changed by distilled water. 



A solution of caustic potash dissolves them. 



They are in no respects changed by liquid ammonia 0,910. 



Concentrated acetic acid 1,030, and solutions of tartaric and oxalic 

 acids produce no change. 



In dilute nitric acid all their diameters are enlarged from three to 

 five times, and the concentric striae disappear ; they swell like inflated 

 bladders, become semi-transparent, are bent in a different manner, and 

 ultimately disappear altogether. Plate 6, figs. 94, 95. 



They are not changed in hydrochloric acid 1,070. 



Carbonate of soda, acetate of lead, prussiate of potash, and am- 

 moniacal sulphate of copper, do not change them. 



Solutions of the nitrate of silver 1,275, change them in the same 

 manner as nitric acid, only they do not disappear so quickly. 



Infusion of galls, and pure alcohol 0,830, produce no change. 



As long as the softened tubercle shall not have thoroughly been 

 thrown off, so long are the lenticular spheres mixed with the sputa. 



The tubercle being expectorated, the sputa again differ according to 

 the difference of the pathological process ; for, if the tubercular pro- 

 cess has been local, the parietes of the cancer secrete globules of pus, 

 which are ejected in union with the mucus of the irritated or inflamed 



