CORRIGENDA. 



Page 10, line 2 from bottom— 1897 change to 1867. 



„ 57, in lettering of Fig. 28 — ma change to mg. 



„ 84, line 10— Denicker change to Deniker. 



„ 209, line 5 from bottom— Sluier change to Sluitor. 



„ 290, footnote *— enclose in square brackets. 



