30 ARTHUR BOLLES LEE 
Fig.7.—Salamandra atra, do,, do. Shows same details ; also the 
terminal tag on the dome-shaped end of the axis. 
Fig.8.—Salamandra maculosa, oogonium, Anaphase chromo- 
some, entire. Same details. 
Fig. 9.—Do., epiderm. Anaphase chromosome, one limb. Same details, 
Fig. 10.—Do., epidermal gland ; anaphase ; one limb of a chromosome. 
Spiral with very wide pitch. 
Fig. 11.—Do., kidney cell. Same details. 
Fig. 12.—Do., cornea. Spirals much flattened on to axis. 
Fig. 13.—Do., retina of larva, rod and cone layer. Details as last. 
Fig. 14.—Triton alpestris, larva, pulmonary epithelium. Entire 
anaphase chromosome. Note the spiral very closely coiled at tip of right- 
hand limb, and not continued round the polar bend. 
Fig. 15.—a, Triton palmatus, spermatogonium; b,Salamandra 
maculosa, spermatogonium ; c, do., epiderm. Transverse sections of 
anaphase spermatogonia. See text. 
Fig. 16.—H 0 mo, pus corpuscle from ulcerated skin. Two chromosomes 
from an equatorial division figure. Sheath and lateral processes shown, 
periaxial spirals invisible, though doubtless existent. 
Fig. 17.—Gallus domesticus, embryonic cartilage. Portion of an 
anaphase. Periaxial spirals just visible, sheath strong. 
Fig. 18.—Ancylus lacustris, buccal epithelium. Tangential] 
section of anaphase. Spirals, lateral processes, and sheath just visible. 
Fig. 19.—Salamandra maculosa, epiderm. Chromosome from 
a not completely regularized equatorial figure. Spirals indistinct, giving 
an impression of ‘ granules ’, 
Fig. 20.—Do., from a completed equatorial figure of a spermatogonium. 
Details as last. 
Fig. 21.—Do., portion of equatorial chromosome of an oogonium, 
Details as last two figs. 
Fig. 22.—Do., renal epithelium. One limb of an equatorial chromosome. 
Spirals distinct on each of the two moieties. 
Fig.23.—Oedipoda cothurna. Equatorial chromosome of 
secondary spermatogonium. Details as for fig. 19, but sheath stronger. 
Fig. 24.—Triton palmatus, spermatogonium. Spireme, early 
stage. Chromosomes double, no sheath or other detail. 
Fig. 25.—Salamandra maculosa, larva, epithelium. Spireme 
somewhat more advanced than last. Moieties of chromosomes varicose 
(dawn of periaxial spirals). 
Fig. 26.—Do., pulmonary epithelium. Spireme, later stage. Moieties 
very varicose, with abundant lateral processes and sheath. 
Fig. 27.—Do., pleural endothelium. ‘Segmented’ spireme. Moieties 
with large varicosities (Pfitzner’s ‘ granules’), and lateral processes and 
sheath, 
