27, line 5, for circumference read circularity. 31, margin line 3, the reference to fig. 16. plate 1. omitted. 31, line 11, dele T. in the margin. 44, margin line 8, for fig. 40. reader. 41. ditto line 22, for fig. 41. read fig. 40. 56, for then is the human body compofed, read then are the mufcles and hones 60, line 14, for fig. 60. read fig. 65. plate 1. of the human body cotnpofed. 84, line 7, for as the brightejl yelloiu, read as for example, the hrightejl yellow. 86, line 15, for apartment read palace. 91, line 14, for Jpoie read fpoken, 94, line 14, read fuccedaneum. in, line 7, to y?i\ 86. read alfo fig. 92, and 93.