94 Proceedings. 



Ordinary Meeting, December 29th, 1891. 



James Bottomlev, B.A., D.Sc, F.C.S., Vice-President, 

 in the Chair. 



The thanks of the members were voted to the donors of 

 the books upon the table. 



Mr. Alex. Hodgkinson, M.B., B.Sc, exhibited a 

 specimen of colouring matter extracted from decayed wood ; 

 the pigment is not peculiar to one kind of wood. It is of a 

 blueish-green colour, soluble in boiling acetic acid. It is 

 separable into two distinct pigments — one green, soluble 

 in cold acetic acid, the other blue, insoluble in cold acetic 

 acid, but soluble in nitric acid. The spectrum shows that 

 it is not chlorophyll. 



Two fragments of the decayed wood containing the 

 colouring matter, picked up in widely severed localities, 

 (North Wales and Radnorshire) were exhibited, and were 

 described by Mr. CHARLES BAILEY as apparently hazel 

 and oak respectively. 



A paper by Mr. P. Cameron, entitled Hymenoptera 

 Orientalis, Part IV., was communicated by Mr. John 

 Boyd. 



