THE MICROSCOPE IN PATHOLOGY. 



231 



FIG. 183. 



cay in nerves save that the thicker nerve-trunks maintain 

 themselves for a comparatively long time, while the finer 

 ramifications soon dissolve. The white substance of 

 Schwann (page 199) first coagulates, then there is a col- 

 lection of drops of myelin within the neurilemma, produc- 

 ing varicosity before complete dissolution. 



8. Adipose Tissue. The fluid fat leaves the cells and 

 gives an appearance of emulsion to the mass. Crystals of 

 margarin, etc., sometimes appear on the cell-walls. 



9. Loose connective tissue fibres swell, become stained 

 with the coloring matter of blood, granulate, and liquefy ; 

 or they may desiccate by evaporation. 



10. Elastic fibres and fi- 

 brous networks resist longer 

 than the last. Hence, elastic 

 fibres may be found in expec- 

 torated matter from gangre- 

 nous lungs, etc. Later they 

 break into granular strise, then 

 into molecules and vanish. 



11. Cartilage lasts long, but 

 melts away at the edges, first 

 becoming transparent and red- 

 dish. The cells fill with fat- 

 globules from fatty degenera- 

 tion of the bioplasm. 



12. Bone retains its struc- 

 ture long, so as to be recog- 

 nized by the surgeon in seques- 

 trse, yet it decays in patches. 

 The bioplasm changes to fat 

 in the cells, acid fluids dissolve 



the lime salts, and the remaining structure disintegrates 

 like cartilage. 



The chemical products of decomposition are but par- 

 tially known. Some are volatile, some soluble in water, 



Products of gangrenous disintegra- 

 tion, a. Leucin ; 6. Tyrosin; c. Fat- 

 crystals ; d. Ammoniaco-magnesian 

 phosphate ; e. Gangrene particles (blacfe 

 pigment);/. Vibriones. 1-300, After 



KlNDFLEISCH. 



