AMOEBA OF THE INTESTINAL TRACT. 105 



1. The daughter nuclei may dissolve entirely, the 

 plasma being filled with chromatin granules and 

 cords, most of which disappear, while out of one part 

 the new nuclei are reconstructed. 



2. The daughter nuclei dissolve with the exception 

 of a small central portion, while the chromatic 

 granules and cords are partly expelled and partly 

 resorbed. 



3. The daughter nuclei extrude chromatic 

 granules and cords to the plasma, but remain dis- 

 tinctly visible and are finally expelled from the cyst. 

 In this case the new nuclei are formed from the free 

 chromatin particles. 



Other variations are noted, but are not of suffi- 

 cient interest to be described. Schaudinn believes that 

 the manner of reconstruction of the nucleus depends 

 upon the degree of development of the cyst wall. 

 He says: 



" My observations showed to me that the indicated 

 variability is connected with the degree of develop- 

 ment of the cystic sheath. For if the reconstruction 

 of the nuclei ensues while the gelatin sheath is only 

 very weakly developed, or not at all, the casting out 

 of the perishing parts of the nucleus is possible; but 

 if the gelatin sheath is strongly developed or the dif- 

 ferentiation of the real cystic membrane has begun, 

 then the perishing substances remain in the plasma 



