Addendum to the article "on the Structure of the 

 Fovea centralis" 



by 

 C. H. Golding-Bird and E. A. Schäfer.») 



On the account which we have given of the literature of the 

 Fovea a paper by A. Schaper (Archiv f. mikr. Anat. 1893. Bd. XLL 

 p. 147) has escaped our notice. This author gives a representation 

 of a section through the middle of the Fovea in which the outer 

 granules are correctly represented as approaching close to the mole- 

 cular layer and the inner granules are shown to be present even at 

 the centre of the Fovea. Schaper appears however not to regard 

 this as a constant condition and he entirely denies the existenc of 

 the dip in the membrana Kmitans externa {external fovea) which is 

 characteristically present in all our preparations. The details of 

 structure are not well shown in Schaper's figure and the description 

 is correspondingly scanty, but the author agrees in the main with 

 the account given by Kuhnt — an account the details of which we 

 ourselves have been entirely unable to confirm. 



We may further take the opportunity of remarking regarding 

 the assertion of W. Krause ^) that our figures represent sections, not 



^) This Journal. Bd. XII. Heft 1. 

 ^) This Journal. Bd. XII. Heft 2. 



