45° 
The Ohio Naturalist. 
[Vol. XV, No. 4, 
The time consumed was 20 seconds. Then the reverse flow 
occurred and the protoplasm containing the granule of the indi¬ 
vidual on the right would flow to the left as indicated by the 
dotted arrow. It would seem at times as if an observer could 
scarcely refrain from concern as to the probability that one indi¬ 
vidual would inherit all the paramylon. At 4:25 P. M. (Fig.l, F) 
Fig. 1. (x 500). Cell division in Euglena oxyuris Schmarda and For¬ 
mation of Paramylon. p = pharynx. s = stigma. p 1 = anterior paramylon 
granule. n = nucleus. p 2 = posterior paramylon granule. c = chloroleucites. 
the process of division was completed, the nuclei having moved 
posteriorly and the individuals appearing normal in every way 
with the exception that each lacked the large anterior paramylon 
granule. Observations were made periodically the folio ing 
day with the expectation of noting the development of the new 
