Morbid Growths. 101 



mic acid mixture should be taken to every post mortem 

 examination, and small bits of any organ that may 

 seem interesting on any account may be put in. A 

 small paper label may be tied on and they can be 

 separated afterwards. 



Almost every morbid growth can be hardened in the 

 chromic acid mixture (page 11), in the same manner 

 as normal tissues. Brain and spinal cord, however, 

 are better prepared in 2 per cent, solution of bichro- 

 mate of potash (page 13). 



ON DOUBLE AND TREBLE STAINING MOBBID GEOWTHS. 



Some very good results will be obtained if the differ- 

 ent staining processes mentioned, as well as any others 

 that may suggest themselves, are tried on different 

 morbid growths. 



For instance, well hardened sections of rodent ulcer 

 and epithelioma may be stained by the indigo- carmine 

 process (page 37) and carefully compared. Other sec- 

 tions of the same material should be then stained with 

 rosein and iodine green (see treble staining) and again 

 compared. In this way, some definite result may be 

 worked out, which by using other specimens of the 

 same disease may be confirmed. 



LAUGHS SECTIONS OF PATHOLOGICAL SPECIMENS* 



If a large section is wanted of any morbid growth to 

 show the distinction between the healthy and diseased 

 parts, such as a section through a cancer and the side 

 of the uterus from which it is growing, it is better to 



