PLATE 3 
EXPLANATION OF FIGURES 
Camponotus herculeanus var. pennsylvanica 
13 Outline of an ovariole showing the terminal filament, ¢, terminal chamber, 
i.c., first zone of growth, g, and later growth zone containing oocytes, 0, and nurse 
cells, n and nc. X 170. 
14 Outlines of oocytes in Stages A toG. & 110. 
15 Outlines of oocytes in StagesHtoL. X 110. 
16 Outline of part of the terminal filament, ¢, and terminal chamber, tc. 
The numbers 17, 18 and 19 refer to cells shown enlarged in figures 17, 18 and 19. 
x 620. 
17 A single cell from the terminal filament. X 3300. 
18 An oocyte from the terminal chamber. X 3300. 
19 A nurse cell nucleus from the terminal chamber. > 3300. 
540 
