68 



PROFESSOK E. FAWCETT. 



We next give a table comparing our results with those of the 

 Anatomical Society, the results of the latter being given in 

 brackets. 



Table Ia. 



Cases. Combined. 



1. In all cases, 306 (399) = 705 . . 



2. In males, 173 (248) = 421 . . 



3. In females, 133 (151) = 284 . . 



Percentage. Combined. 



31-37 (26) = 28-36 



29-47 (24-2) = 26-3 



33-83 (29) = 31-3 



We may now consider the effect of age on the patency of the 

 foramen ovale. Here we may say that the age was determined 

 in all cases save one male. In the table subjoined we give the 

 results of our own investigations side by side with that of the 

 Anatomical Society. The Eoman letters A.S. indicate Ana- 

 tomical Society. 



Table II. — Influence of A;/e on Foramen Ovale. 



Combined, 354 



96 



267 



75 



It must be evident from the above table that little is to be 

 learned from it as regards the effect of age. " 



We will now examine the influence of age on the foramen 

 ovale in males and females combined. 



