ERRATA. 



Page 44, 2d line from bottom, for "pneumonic," read " pneumic." 

 " 71, 2d line " " of foot note, for "proportions," read 



"propositions." 

 " 236, line 12th, and page 508, line 17th from bottom, for " when," 



read " where." 



" 265, 4th line from bottom, for " ," read " T V" 

 " 425, line 10th, for " its," read " their." 



" 428, lines 6th and 15th, for " Pacchionian," read " Pacinian." 

 " 489, line 9th from bottom, for " 39,653," read " 39,653(?)." 



