LIXXEAX SOCIETY OF LOXDOX. 



13 



Palladin, Gortuer. etc. The manifestation of oxydase reactions 

 in solutions of different degrees of hydration — the possible bearing 

 of these facts ou the course of chemical events in plant cells. 



(3) The Axthoctax Pigments of Pl.o-ts axd their Mode 

 or Formation. — The work of A. G. Perkin, Wheldale, Will- 

 sliirter, etc. 



The Glucoside nature of the antecedents of anthocyanin. The 

 stages in the formation of pigment : — 



Glucoside + enzyme — >-Sugar + chromogen. 

 Chromogen + enzy me + peroxide — ->piginent. 



(4) Other Plaxt Pigments.— The action of Oxydase on Amino 

 Acid and on phenolic bodies in the presence of Amino Acids. 



Formation of pigments from glucosides (e. g. Arbutin) in this 

 manner. Biological synthesis of the principles of both colour 

 and odour of the ripe fruit. 



(5) An hypothesis as to the relation between the several 

 members of an epistatic series of pigments. 



Mendelian interpretation of an epistatic colour-series. 



Parallel behaviour of certain phenolic substance*, e. 7. methy- 

 quinol, which do not give a colour-reaction with oxydase i')er se, 

 but only when another compound, such as benzidine, is present to 

 transmit oxygen to them. 



Primida sinensis. Biochemical model. 



Oxydase. Oxydase. 



Blue factor. 4- Ked factor. Benzidine. + Methyl quinol. 



i >^ I I 4^ ] 



i Bed. ir ^ Bed. ^ 



Blue. Colourless. Blue. Colourless. 



A discussion followed in which the participants were : — Miss 

 Wlieldale (visitor), Prof. AV. Eateson, 8ir E. Bay Lankester, 

 and Prof. H. E. Armstrong (visitor), Dr. E. F. Armstrong briefly 

 replying. 



April 2nd, 1014. 



Dr. A. Smith "W'oodward, F.B.S., Vice-President, 

 in the Chair. 



Tne Minutes of the General Meeting of the 19th March, 1914, 

 \\ere read and confirmed. 



Miss Sarah .Martha Baker, D.Sc. (Lond.), Mr. Charles John 

 Bond, and Mr. Stuart Hoi.'g, were proposed as Fellows. 



