ORGANS OF GENERATION. 289 



ordinarily they vary between 50-70-100 p. m. In a few cases 

 150-200 p. m. solids have been found. 



As form-elements we find red and colorless blood-corpuscles, 

 granular cells, partly fat-degenerated epithelium and partly large 

 so-called GLUGE'S corpuscles, fine granular masses, epithelium-cells, 

 cliolesterin-crystals, and colloid corpuscles large, circular, refractive 

 formations. 



Though the contents of the proliferous cyst may have a variable 

 composition, still it may be characterized in typical cases by its 

 slimy or ropy consistency; by its grayish-yellow, chocolate-brown, 

 sometimes whitish-gray color, and by its relatively high specific 

 gravity, 1.015-1.025. Such a liquid does not ordinarily show a spon- 

 taneous fibrin-coagulation. 



We consider colloid, metalbumin and paralburnin as character- 

 istic constituents of these liquids. 



Colloid. This name does not designate any particular chemical 

 substance, but is given to the contents of tumors with certain 

 physical properties similar to gelatinous glue. Colloid is found 

 as a diseased product in several organs. 



Colloid is a gelatinous mass, insoluble in water and acetic acid; 

 it is dissolved by alkalies and gives a liquid which is not precipi- 

 tated by acetic acid or by acetic acid and potassium ferrocyanide. 

 Sometimes a colloid is found which, when treated with a very 

 dilute alkali, gives a solution similar to a mucin solution. On 

 boiling with acids colloid gives a reducible substance. It is related 

 to mucin, and it is considered by certain investigators as a trans- 

 formed mucin. A colloid found by WURTZ in the lungs contains 

 C 48.09, H 7.47, N 7.00, and 37.44^. Colloids of different origin 

 seem to have an unequal composition. 



Metalbumin. This name SCHERER gave to a proteid substance 

 found by him in an ovarial fluid. The metalbumin was considered 

 by SCHERER to be an albuminous body, but it belongs to the mucin 

 group and it is therefore called by the author pseudomucin. 



Pseudomucin. This body, which, like mucin, gives a reducible 

 substance when boiled with acids, is a mucoid of the following 

 composition: C 49.75, H6.98, N 10.28, 81.25, 31.74# (AUTHOR). 

 With water pseudomucin gives a slimy, ropy solution, and it is this 

 substance which gives the fluid contents of the ovarial cysts their 



