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FREDERIC T. LEWIS 



gus enters the part toward the pylorus, The fundus is best 

 marked when the pars cardiaca is in an approximately vertical 

 position, and this is the case in figures 6 to 9. Broman, however, 

 has found a greater variety of positions. In an embryo of 21 mm. 

 he figures the stomach as horizontal, so that both orifices are 

 superior, as described in the adult by Vesalius; but this position 

 must be regarded as exceptional. 



The body of the stomach requires no comment other than that 

 its ridges appear to be rather definitely placed. The shelf-like 



P. hep 



P. CIO 



O. p.py. 



Fig. 10 Model of the interior of the stomach, from an embryo of 44.3 mm., 

 H. E. C. 1611, X 25 diam. Car., cardia. C.g., canalis gastricus. O.p.py., ori- 

 ficium partis pyloricae. P.ao., plica aortica. P.hep., plica hepatica. 



prominence at the base of the oesophageal cone in figure 5, is 

 evidently represented by the chief fold which extends horizon- 

 tally across the base of the fundus, and bends down parallel 

 with the lesser curvature in figure 6. Such an angular fold (with 

 a subdividing furrow) is seen in figure 9, and it is clearly shown in 

 embryos of 10 and 16.2 mm. figured by Broman. Why the ridges 

 are absent from other specimens, as in figures 7 and 8, and in 

 several of Broman's embryos, is not apparent. 



