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Transactions of the Society. 
of dissection or serial sections. To this Dr. Gunther most kindly 
assented, and to him I beg to express my very hearty thanks for 
this privilege so courteously granted; to Prof. Bell too, who has 
allowed me to examine, from time to time, many specimens of earth- 
worms that the Museum has received, my thanks are due. A con- 
dition was attached to Dr. Gunther’s consent, that I should return to 
him any preparations of the worm which I might have occasion to 
make. As the worm is a unique specimen this was only just and 
reasonable, and I readily agreed to it. 
The single specimen was of too small a size to dissect, and more- 
over, such a dissection would not have exhibited, without too great 
(diagrammatic), cod, the chief lobe in somite XI. cod. I, lobe in XII. 
i, cut intestine, d, duct of gland opening into intestine. 
Fig. 7. — Section of anterior calciferous gland of right side from a longitudinal 
section, b.v, blood-vessels, e, lining epithelium of the gland. I, lumen. 
x, vacuolated cells in the centre. (Slide YI. b 7 et seq .) 
„ 8. — A section through the posterior calciferous gland and its lobe ( ca 2 .! ) show- 
ing the more extensive lumen. (Slide XI. b.) 
„ 9. — A portion of the preceding under a high power. B.v , blood-vessels, ep, 
excreting epithelium, -with striated protoplasm. cce.ep, vesicular 
ccelomic epithelium, m, muscles in the wall of the gland. 
„ 10. — Diagrammatic drawing of transverse section of the pharynx, compiled 
from longitudinal sections, gl, groups of gland cells, constituting a 
“ pharyngeal gland.” m, rows of muscles, alternating with the glands. 
u, the upper wall. I , lower wall of diverticulum ( di ). 
„ 11. — A portion of the preceding (di, fig. 10) more highly magnified, di, the 
lateral part of the diverticulum, u, the upper ciliated epithelium. I, 
the lower, cuticulated epithelium, m, muscles. 
,, 12. — A group of gland cells from the wall of the pharynx, gl, gland cells 
in strings, n , nucleus of one such cell, m, muscle-fibres. 
,, 13. — Transverse section of the body posterior to the genital region, slightly 
diagrammatic in so far as the nephridia are shown, with nephridiopore 
on one side, and setae. 1, 2, 3, 4, the four setae on one side. B.v, 
dorsal blood-vessel with intestinal branches. s.i.v, subintestinal 
vessel, s.n.v, subneural vessel. N, nerve-cord, n, nephridium. /, its 
nephrostome. n.p, nephridiopore. B.w, body-wall. Lw, intestinal wall. 
(Both are represented quite diagrammatically.) 
„ 14. — A portion of the intestinal wall to show the three kinds of cells, a, b, c, 
forming its lining, with b.v blood-vessel, c.m circular muscles. 
15. — The three cells represented isolated as is the case in some of the damaged 
sections, a, ordinary ciliated columnar cell. 6, goblet cell, with x, the 
secretion, c, deeply staining triradiate cell, with spherular secretory 
contents, n, nucleus. 
„ 16. — General diagrammatic view of the genital system (immature worm), 
compiled from examination of longitudinal sections. The alimentary 
canal is supposed to have been removed, t, testis. /, funnel of sperm- 
duct. s.s, sperm-sac. o, ovary, od, funnel of oviduct, os, probable 
ovisac, n, nerve-cord. 
„ 17. — A portion of a section through the spermiducal funnel, very highly 
magnified. (Slide YI. b 3.) 
sp.f, rudimentary sperm-funnel not yet ciliated, n.st, nephrostome 
imbedded in the thickening which will give rise to the sperm-funnel. 
b.v, blood-vessel, sep, septum between somites XI. and XII. m, muscles 
of septum. 
The arrow points to the position of the internal aperture of the sperm- 
duct, which can be seen a few sections from this. (Slide YI. a 5.) 
Cf. this drawing with those of Bergh, loc. cit. in text. 
