214 
H. M. WOODCOCK. 
figures, but it is uot unlikely tbut where two grains are 
present, they have originated by the division of one, if com- 
parison is made with the somewhat similar condition seen in 
Kalyolysus and “ Adelea.” Whether, again, a portion of 
the chromatic material is used to replenisJi the chromatin of 
the reticulum, or whether it is all unrequired and eliminated, 
I am unable to say. No definite centrosomic granule was 
noticed within the nucleus itseU'. 
Note to Part III. 
Since this part was written my attention has been called 
to an important paper by Debaisieux (6a), on the Coccidia of 
Lithobius. I am only able here to indicate briefly the 
conclusions arrived at by this author, in so far as they bear 
upon the chief points which have been considered in the 
above section. Debaisieux also finds, as do Schellack and 
Reichenow, that phases of more tlian one parasite have been 
confused in previous descriptions of Adelea ovata. No 
reference whatever is made, however, to Schellack and 
Reichenow’s note — an omission which is to be regretted. 
Debaisieux agrees that there is no double (or sexual) schizo- 
gony in the true Adelea ovata; but whereas Schellack and 
Reichenow refer those phases which do not belong to Adelea 
to Barrouxia alpina, Debaisieux refers them (at any rate, 
those observed by Jollos) to Coccidium lacazei. I am 
very pleased to find that Debaisieux also entirely upholds the 
occurrence of a true division-centre (centrosome) and of 
promitotic division of the karyosome, as described by Jollos 
(loc. cit.) ; though it may be mentioned that, as regards the 
precise modes of nuclear behavit)ur and division in the later 
stages of schizogony, he differs in certain points from that 
author. Further, Debaisieux takes a view upon the nature and 
significance of the karyosome quite similar to that which 1 
have mentioned above; and this author also dissents from the 
ideas about the karyosome propounded by Hartmann and his 
school. 
