ADDENDUM. 



p. 24, 1. 12. After 'so-called ductless glands'' read 'other than the 

 spleen already described (p. 16)'. 



ERRATA. 



p. 2^, 1. 19, for ' Munro' read ' Monro*, 

 p. 384, foot-note, for 8576 read 8376. 



