Fig. K. Section through the hind end of the abdominal opening of the Müllerian duct of a chick of 123 hours. Zeiss C, ocul. 2 (reduced one-third). It illustrates the peculiar cord connecting the Müllerian and Wolffian ducts.
DESCRIPTION OF [PLATE 29]. (XIV. p. 644.)
Complete List of Reference Letters.
am. Amnion. ch. Notochord. ch´. Notochordal thickening of hypoblast. ep. Epiblast. hy. Hypoblast. m.g. Medullary groove. me.p. Mesoblastic plate. ne. Neurenteric canal (blastopore). pr. Primitive streak.
Series A. Sections through an embryo shortly after the formation of the medullary groove. × 120[4].
Fig. 1. Section through the trunk of the embryo.
Figs. 2-5. Sections through the neurenteric canal.
Fig. B. Surface view of a somewhat older embryo than that from which Series A is taken. × 30.
Series B. Sections through the embryo represented in Fig. B. × 120.