ERRATA. 



p. 6, lines 32, 36, for " benzol " read " benzene " 



p. 11, line 8 of footnote, for " already referred to " read " referred 



to overleaf " 

 p. 16, scheme, for " phaeophytin " read " phseophytin a " 

 p. 20, line 5, delete " in petrol ether" 

 p. 49, line 16, for " 1902 " read " 1899 " 



p. 70, legend of Fig. 7, for " Kiogh " read " Ege and Krogh " 

 p. 113, lines 12, 13, delete " glucose resulting from the hydrolysis of " 



