The American journal of anatomy . THE AMERICAN JOURNAL OF ANATOMY. VOL. 10, No. 1, JAN., 1910. A HUMAN EMBRYO WITH SEVEN PAIRS OF SOMITESMEASURING ABOUT 2 MM. IN LENGTH. BY WALTER E. the Anatomical Laboratory, Johns Hopkins University. With 6 Plates. Among the youngest human embryos and one of the youngest inProfessor Malls collection, is Embryo No. 391, which he has verykindly permitted me to reconstruct and describe. In general devel-opment this embryo is almost identical with, probably a trifle olderthan, the Kroemer-Pfannestiel embryo, Klb, which measures and has six pair


The American journal of anatomy . THE AMERICAN JOURNAL OF ANATOMY. VOL. 10, No. 1, JAN., 1910. A HUMAN EMBRYO WITH SEVEN PAIRS OF SOMITESMEASURING ABOUT 2 MM. IN LENGTH. BY WALTER E. the Anatomical Laboratory, Johns Hopkins University. With 6 Plates. Among the youngest human embryos and one of the youngest inProfessor Malls collection, is Embryo No. 391, which he has verykindly permitted me to reconstruct and describe. In general devel-opment this embryo is almost identical with, probably a trifle olderthan, the Kroemer-Pfannestiel embryo, Klb, which measures and has six pairs of somites. It is older than Eternodsembryo measuring mm., Graf Spees Gle mm., and EmbryoFrassi mm., in the order named. It is younger than theembryos of Unger and Bulle, of 9 and 14 somites respectively,Eternods mm. embryo, and embryos XLIV (BfT), LXVIII ( mm.), VI (B. R. mm.) and VII (E mm.) of His. This very rare specimen came into Professor Malls possessionthrough the kindness of Dr. R. W. P


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1910