Zool— Vol. I.] EISEN—PLASMOCYTES. 7 1 



trosomes. The thin, narrow, blue zone around the centrosomes is the somo- 

 sphere. Both archosomes lie in a common granosphere. 



62. A plasmocyte stained with Ehrlich-Biondi. The stain has not been 

 particularly successful, but the figure is interesting on account of the two 

 separate centrosomes, or somospheres. 



63. A plasmocyte with two separate archosomes. This plasmocyte ap- 

 pears to be in a state of degeneration. 



64. A plasmocyte with two archosomes, or rather with two separating 

 plasmocytes. The lower one is indifferently stained and possibly in degen- 

 eration; the upper one is most intensely differentiated, and possesses two 

 additional spheres; probably the centrosphere stained pale blue, which has 

 been divided up by the addition of some foreign substance. 



65. A plasmocyte with two archosomes in one common granosphere. The 

 upper archosome, which contains a single centrosome, is stained differently 

 from the lower one. In this lower one there are three centrosomes in a 

 crescent zone of somosphere. 



66. A plasmocyte with three archosomes in a common granosphere. The 

 paler zones are the centrospheres. The lower one of these contains a large 

 somosphere and a centrosome. 



67. Stained with Ehrlich-Biondi and unusually well differentiated for this 

 stain. There are four archosomes, but the hyalosphere is only differentiated 

 around one, which contains three distinct centrosomes. 



68. A star-shaped plasmocyte with three large archosomes, each one sur- 

 rounded by its granosphere. An additional smaller archosome, indifferently 

 stained, is seen at the lower right margin. 



69. A large plasmocyte with two archosomes, stained differently. The 

 one to the left is more perfect, with a large irregular centrosphere, at the 

 lower edge of which are seen two large centrosomes. This plasmocyte may 

 be best explained as having been formed of two, joined together by the plas- 

 mosphere, as the hyalospheres are not continuous. 



70. A plasmocyte with two archosomes with distinct differentiation. The 

 one to the left contains a centrosome superposed on an erythrocyte. 



71. Another plasmocyte with two archosomes, each containing a centro- 

 some, centrosphere, and granosphere. 



72. A compound plasmocyte, consisting of a common plasmosphere, and 

 a common hyalosphere; but with three separate granospheres, each with an 

 archosome. 



73. A large plasmocyte. In the granosphere we find the centrosphere 

 without centrosomes, but at its left upper margin are seen differendy stain- 

 ing granules, probably foreign matter, reminding one of the brown sphere in 

 fig. 64. The other dark patches may be explained as centrosomes and somo- 

 spheres. 



74. On one side of the inner white zone are seen a few dark granules 

 of doubtful nature, possibly centrosomes. The other inner spheres are not 

 easily recognizable. 



75. In this plasmocyte the central part contains what greatly resembles 

 chromosomes, and it is possible that there is an effort to establish a nucleus 

 from accidental nuclear matter. There are three faintly differentiated archo- 

 somes in the common granosphere. 



