608 J. BRONTE GATENBY. 
7. Faure-Fremiet.— liltude sur les mitochondries des Protozoaires et 
des cellules sexuelles,” ‘ Arch. d’Anat. micr.,’ t. xi. 
8. Murray, J. A. — Contributions to a Knowledge of the Nebenkern 
in the Spermatogenesis of Pulmonata,” ‘ Zool. Jahrb./ Bd. xi. 
9. Lee, Bolls. — “ La Cellule,” ts. xi, xiii, xx, xxi, various papers on the 
cytology of Helix. 
EXPLANATION OF PLATES 29-84, 1 
Illustrating Mr. Bronte Gatenby’s paper on “The Cytoplasmic 
Inclusions of the Germ-Cells” : Part II, Helix aspersa. 
Explanation of Lettering. 
A. Acrosome (perforatorium). A.R. Archoplasm (idiozome). A.L.N. 
Nucleus of Ancel’s layer (mesoderm). A. S. Astral sphere (from which 
each aster arises). C. Centrosome. C.W. Cell wall. F.N. Follicle 
nucleus. G.E. Germinal epithelium. M. Ordinary mitochondria 
(macromitochondria). M 2 . Smaller mitochondria (micromitochondria). 
N.C. Nurse- (yolk) cells. N.K. Nebenkern (rods or batonettes). S.B. 
Spindle bridge. S.G. Siderophilous granule. S.P.G. Spermatogonium. 
V.A.C. Alveoli in substance of cytoplasm of egg. Later become filled 
with yolk discs. X.N.K. Body thought to be Nebenkern rod. Y. Yolk 
disclets. (Only in certain figures, for others see text.) 
All figures drawn with camera lucida, paper at table level. Koritska 
T ’gth semi-apochromatic oil immersion and compensating eye-pieces were 
almost invariably used. In most cases the figures are reduced. The 
arrow points to the inside of the lumen. 
F.W.A. Fixation in Flemming without acetic acid. C. Fixation in 
Champy’s fluid. S. Bichromate osmic smear. 
PLATE 29. 
Fig. 1. — For an explanation see the text page 36. x 800. 
1 In such a figure as that in PI. 32, fig. 24 a, the mitochondria seen at 
a lower focal level have been drawn in palely, as is a usual cytological 
convention. In PI. 33, fig. 33, the white line in each mitochondrial 
grain represents the “ light.” Hollow mitochondria are as drawn in 
PI. 33, fig. 40. 
