PLATE VIII 



FIG. 122. 



Drawing from radiograph of normal stomach as seen in the 

 vertical position after an ordinary bismuth and barium meal 

 containing two ounces of bismuth and two ounces of barium 

 sulphate. It shows the depressions caused by peristaltic con- 

 tractions towards the pylorus, and as these are constantly 

 moving towards the pylorus they are not due to fixed anatomical 

 constrictions, and are therefore omitted from the other plates. 

 The pylorus and commencement of the duodenum are shown. 



As the drawing was made orthodiagraphically, it is therefore 

 to scale and not distorted. Drawing by A. F. Hertz, M.D. , 

 F.R.C.P. 



