SUPPITRATION. 



33 



surface whose continuity is perfect, as from one in which there 

 is a breach. In every case granulations arise out of the tissue, 

 and it is not essential there should be loss of substance ; they 

 are found upon bone without any loss of substance having pre- 

 ceded them. They are found also in direct contact with the 

 cutis under intact epidermis, and with mucous membranes ; and 

 only in proportion as they become developed do the mucous 

 membranes lose their normal character. 



"Well-formed, perfectly ela- 

 borated, healthy pus is a smooth, 

 rather greasy, sometimes viscid, 

 yellowish-white, or cream-col- 

 oured substance, of a higher 

 specific gravity than w^ater, aver- 

 aging generally about 1-030 



having little or no smell, and of *^® membrane the contents have cleared 

 ° up, and three little nuclei are seen. 



© © 



I. 



Fia. 7.— Cells from fresh catarrhal 

 sputa, A. Pus corpuscles, a. Quite fresh. 

 h. When treated with acetic acid. Within 



B. Mucus corpuscles, a. A simple one. 

 b. Containing pigment granides. , 300 

 diameters. — (Virchow.) 



© (5)®©®"© 

 ® 



@ <^ (5S> ^ 



0'%' 



s„ 



Fia. 8. — A. Pus corpuscles, a. Freslu' 

 b. After the addition of a little water. 



an alkaline reaction. Microsco- 

 pically it is found to consist of 

 certain essential constituents, 

 namely, pus corpuscles ; which 

 measure about ^jVtto to y^^,, 

 of an inch in diameter, are pel- 

 lucid, filled with serai- fluid 

 albuminous contents, and some- 

 times containing a few minute 

 oil globules. Along with the 

 pus cells floating in the clear 

 liquor puris are often seen 



minute clear particles, which ']'• ^^^^ treatment with acetic acid. 



^ ' the contents cleared up, the nuclei 



6eem to have some relation, as which were in process of division, or 



nuclei or rudiments of the cells. «/'«^dy divided visible at e, with a slight 



• depression on their surface. £. Nuclei 



These minute particles are not of pus corpuscles, a. Simple nucleus 



_,__. +1,^ 1 „/•„•!-• with nucleoli, 6. Incipient division, with 



more than ^^TTUD of an inch in depressions' on the surface of the nudet 



size. These two solid COnsti- <■■ Progressive bi-partition. d. Tri-par- 



+,,„„4.„ n X • n -J tition. C. Pus corpuscles in their natu- 



tuents float m a fluid or serum. „1 position with regard to one another. 



called the liquor p^iris, and the 500 diameters. —(Viechow.) 



shape of the cells depends on • By many hcia to be nucleoli. 



the density of tliis liquor puris. Sometimes a distinct, circular,' 

 dark-edged nucleus may be seen in the paler corpuscles, and 

 sometimes two or even three particles, like a divided nucleus. 



