Our knowledge of the early development of Man has made marked progress during recent years, numerous fairly well-preserved embryos having been described in greater or less detail. There are still, however, numerous gaps in our knowledge, pertaining not merely to points of detail but to fundamental questions, so that any early embryo reasonably well preserved and reasonably well sectioned is deserving of careful study. Our specimen belongs to the comparatively late presomite stage represented in the literature by such embryos as Kl13 (Grosser, 1913), Wa17 (Grosser, 1931), Peh. 1 -Hochstetter (Rossenbeck, 1923), and the embryo of Ingalls (1918), and characterised by the presence of an elongated primitive streak, a luminated chorda-process and a prochordal plate. We offer no apology, however, for presenting a fairly detailed description of yet another example of this stage, since our embryo amongst other things provides a more complete picture of the cranial region of the head-process than any specimen hitherto described.