Fics. 40-41.—Sections of the nuclei in odcytes of a young toad with a 
body length of 3.5 cm. A large nucleolar body, oxychromatin threads and 
feathery chromosomes are shown. 1,000. 
Fic. 42.—Section of the nucleus in the odcyte of a toad with a body 
length of 3 cm. Some of the nucleoli stain faintly and are evidently in 
the process of dissolution. X 1,000. 
Fic. 43.—Section of a nucleus in an odcyte of a toad with a body 
length of 4 cm. showing the fragmentation of a large nucleolar body, 
scattered oxychromatin threads, and a pair of chromosomes. > 1,000. © 
Fic. 44.—Part of a section of an egg taken from a young toad with a 
body leygth of 5.5 cm. The yolk-nuclei are collected in a zone lying mid- 
way between the nucleus and the periphery of the egg. Diameter of the 
egg is 0.23 mm.; of the nucleus, 0.11 mm.  _I,000. 
Fic. 45.—Drawn from an egg taken from the same ovary as that from 
which Fig. 44 was taken. Differentiation of the compound-nucleoli with 
the aid of safranin and gentian violet. 1,000. 
Fic. 46.—Part of a section of an egg taken from a toad with a body 
length of 5 cm. The yolk-nuclei are forming at the expense of the vitel- 
line bodies. 1,000. 
Fic. 47.—Division stages of a vitelline body. X 1,334. 
Fic. 48.—Section of the nucleus of an egg taken from the ovary of an 
adult toad killed the latter part of April. The plasmosomes are separated 
from the chromatin and most of them are massed at one side of the 
nucleus. Diameter of the nucleus, 0.2mm. X 333. 
