G: Carl Hiiber 



55 



development and two uriniferous tubules of a stage of development in 

 which the different parts oi a uriniferous tubule may be readily made 





Fig. 11. A portion of a longitudinal section of a kidney of a human 

 embryo (No. 11) measuring 6.5 cm. (This section is the most typical of the 

 series of sections used in making the preliminary drawings from which was 

 made the model shown in Fig. 10.) X 133. C, capsule; d, collecting tubule; 

 pi, proximal or descending limb of Henle's loop; m, Malpighian corpuscle with 

 neck and a portion of proximal convoluted tubule; be, anlage of Bowman's 

 capsule and a glomerulus showing fold of inner wall of capsule; dc, distal 

 convoluted tubule; a, end branch of collecting tubule and ampulla; iz, inner 

 2one of metanephrogenic tissue; pc, proximal convoluted tubule. 



