March 23rd, 1915.] PROCEEDINGS. xix 



regarded as part of the general radiation problem, and its 

 importance in this connection was discussed. 



Ordinary Meeting, March 23rd, 1915. 



The President, Mr. Francis Nicholson, F.Z.S., 

 in the Chair. 



A vote of thanks was accorded the donors of the books 

 upon the table. 



The President made a short communication relating to the 

 early presence of certain birds and butterflies, observed by him 

 on March 1st and March 8th. 



Mr. T. A. Coward, F.Z.S., F.E.S., read a paper entitled 

 " A Note on the behaviour of a Blackbird — a problem 

 in Mental Development." 



Mr. A. W. Rymer Roberts, M.A., read a paper entitled : 

 "On two cases of Parallelism in the Aphidae." 



These two papers are printed in full in the Memoirs. 



Ordinary Meeting, April 13th, 1915. 



The President, Mr. Francis Nicholson, F.Z.S., succeeded by 

 Professor G. Elliot Smith. M.A., M.D., F.R.S., in the Chair. 



A vote of thanks was accorded the donors of the books 

 upon the table. These included : " The Stela of Sebek-kpu? by 

 T. Eric Peet (Publication No. 75) (8vo., Manchester, 19 14), 

 presented by the Manchester Museum ; " Primary Triangula- 

 tio?i on the 104th Meridian . . . ," by William Bowie (Special 

 Publication, No. 19) Uto., Washington, 19 14), and "/V. 

 Levelling from Brig/iam, Utah, to San J'rancisco" by William 



