Part 32

Fig. 38, Stage E. Embryo with about thirteen mesoblastic somites in which the flexure of the hind part of the body has commenced. The remains of the original blastopore are present as the mouth, placed between the second pair of mesoblastic somites, and the anus placed on the concavity of the commencing flexure of the hind part of the body.

Fig. 39. Side view of same embryo.

Figs. 40-42. Drawings by Professor Balfour of three transverse sections through the embryo from which fig. 36 was taken. (Zeiss c, Camera.) Figs. 40 and 42 pass through the region of the blastopore.

bl. Blastopore. ep. Epiblast. hy. Hypoblast. me. Mesenteron. mes. Mesoblastic somite.

Fig. 43. Male generative organs of Peripatus capensis, viewed from the dorsal surface. (From a drawing by Miss Balfour.)

a.g. Enlarged crural glands of last pair of legs. F.16, 17. Last pairs of legs. f. Small accessory glandular tubes. p. Common duct into which vasa deferentia open. p.r. Prostate. te. Testes. v.c. Nerve-cord. v.d. Vas deferens.

THE CAMBRIDGE SCIENTIFIC INSTRUMENT COMPANY.]

THE CAMBRIDGE SCIENTIFIC INSTRUMENT COMPANY.]

TRANSCRIBER'S NOTES:

Underscores surround text in italics, like this. Raised dots in numbers were converted to decimals. Superscript letters are enclosed in braces, e.g. P{1}.

Use of periods and commas in the abbreviations within and referring to illustrations is inconsistent. Often punctuation marks do not match the illustrations to which they refer. Periods were retained; commas were added to separate figure numbers from abbreviations within the figure. Spacing within the abbreviations was standardized. Occasionally, identification marks referenced in the text do not match the illustration (for example, discussion of Figure 10, Plate 2, where epiblast is identified with e in the text, but with E in the illustration).

Footnotes were renumbered sequentially, indented, and moved to follow the paragraph or section in which the anchor occurs.

Other changes:

Footnote 4: 're-agent' to 'reagent' Explanation of Plates, Plate 35, Figures 26-27: 'Tranverse' to 'Transverse'