STRUCTURE OF CERTAIN CHROMOSOMES 31 
Fig. 28.—Triton palmatus, spermatogonium. Later spireme. 
Periaxial spirals can just be glimpsed. 
Fig. 29.—Salamandra atra, Spermatogonium, End of anaphase. 
Chromosome V’s folded into the stave form, 
Fig. 30.—Triton palmatus. Spermatogonium. Polar clump. 
Chromosomes tightly folded, much contracted. 
Fig. 31.—Bombinator igneus. Spermatogonium. Polar clump. 
As last. 
Fig. 32.—Triton palmatus. Spermatogonium. Clump showing 
chromosomes coalesced. Wholly or in part an artefact. 
Fig. 33.—Do., do., do. Clump in polar view. 
Fig. 34.—Triton alpestris. Do.,do.,do. Profile view. 
Fig. 35.—Triton palmatus. Do, Clump expanding, early 
stage. 
Fig. 36.—Do., do., do. Later stage. 
Fig. 37.—Do., do., do. Later stage of expansion, clump passing into 
telophase. 
Fig. 38.—Do., do., do. Same stage, profile view. 
Fig. 39.—Salamandra maculosa. Oogonium. Same stage, or 
early telophase. Axes of limbs of chromosomes closely entwined round 
one another. 
Fig. 40.—Do., do.,do. Somewhat later stage, chromosomes elongating. 
Fig. 41.—Bombinator igneus, spermatogonium. Clump in stage 
of figs. 38 and 39, 
PLATE 2, 
Fig.42._Salamandra maculosa, spermatogonium. Telophase, 
early, showing telophasic ring in profile (section). 
Fig. 43.—Triton palmatus, Do.,do.,do. Note the chromosomes 
flattened on to the outside of the hyaline globules, which are in course 
of fusing into a ring. 
Fig. 44.—Do., do., do. Tangential section of ring. As last. Two large 
hyaline globules shown in the middle. Note the ends of the chromosome 
axes showing divaricated at the antipolar ends. 
Fig. 45.—Do., do. Profile view of a ring at aslightly later stage. Chromo- 
some moieties looser ; chromosomes longer. 
Fig. 46—Salamandra maculosa. Renal epithelium.  Telo- 
phasic ring, same stage as last, same details. 
Fig.47.—Bombinator igneus. Spermatogonium, Section of 
ring. same stage as last, and same details. 
Fig. 48.—Do., do. Later stage of telophasic ring, polar view. 
Fig. 49.—Triton palmatus. Polymorph spermatogonium, Mid- 
telophase, ring beginning to close. Chromosomes elongated, 
