Archive image from page 117 of The development of the chick;. The development of the chick; an introduction to embryology . developmentofchi00lill Year: 1908 98 THE DEVELOPMENT OF THE CHICK anterior end of the plate (Fig. 48) (the neural groove); the mar- gins of the anterior portion of the medullary plate then become elevated somewhat above the surrounding blastoderm, forming MM mm mm

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