32 



TERMINATIONS OF INFLAMMATION. 



^-2 



mediate tissue, which continually liquefies and becomes more 



and more scanty as the pro- 

 liferation of tlie cells extends. 

 It is held that this liquefaction 

 is of a chemical nature; the 

 intermediate substance (which 

 is of a glutinous nature) be- 

 comes converted ultimately into 

 an albuminous fluid, and is ren- 

 —Purulent granulations from dered liquid. We tlius See that 



the subcutaneous tissue of a rabbit round . i ■ j p 



about a ligature, a. Connective tissue pUS IS UOt derived trom any 



C tCj>.^..^-^?-' 



■^^r.^i^:^^_ 



Fig. 5.- 



corpuscles. b. Enlargement of the cor- 

 ])uscle8, with division of the nuclei, c. 

 Division of the cells (granulations), d. 

 Development of the pus corjjuscles. — 



(ViKCHOW.) 



process, 



effusion, but that it is formed 



by vital changes in the germs 



of the tissue, and that, by a 



slight modification of the same 



new connective tissue is formed. The outmost layer 



of the intercellular tissue is 



often long preserved, whilst 



all its deeper parts are already 



filled with pus corpuscles, 



or are converted into an 



abscess ; at last the surface 



gives way, or, without giving 



way, is directly transformed 



into a soft diffluent mass. — 



(ViRCHOW ) 



The pus itself was for- 

 merly thought to have solvent 

 properties, and that by this 

 power it was enabled to find its %vay to the surface, but experi- 

 ments have proved this to be incorrect. Bones have been 

 placed in cavities full of pus, and left there for weeks, and 

 when they were afterwards weighed, they have, if anything, 

 become heavier, through the absorption of fluid matters, but no 

 softening has been produced, except that caused by decomposi- 

 tion. How far the tissue is destroyed by solution chiefly de- 

 pends upon the question whether the substance that surrounds 

 the young cells becomes completely fluid. If it retains a cer- 

 tain degree of consistence, the process is confined to the pro- 

 duction of granulations, and these may as well proceed from a 



Examples of Cells. 



Fig. 



-a, a. Young cells, b and c, 

 Connecting tissue cells ; and d. Pus cell, 

 all derived from a. 



