362 DEVELOPMENT OF TllAGOPHYLLOCERAS LOSCOMBL [Dec. I914, 



DlSCUSSIOX. 



Dr. A. M. Dxvies congratulated the Author on what appeared 

 to be a very important piece of work. The species that he 

 had chosen for investigation belonged to the first of the series of 

 invading ammonites from the Mediterranean area which temporarily 

 established themselves in Britain and, more frequently, in German}-. 

 The paper was one to be read carefully and at leisure, and the 

 connexions which it appeared to trace between Jurassic and earlier 

 Ammonoids promised to be of great interest. 



The Pbesidext (Dr. A. Smith Woodwaed) expressed his 

 gratification that a beginning had been made in studying in 

 detail the growth-stages of the British Liassic Ammonites. Until 

 all the principal types had been dissected in the skilful manner in 

 which the Author had treated Tragopliylloceras loscombi, there 

 seemed to be little hope of making further progress in the inter- 

 pretation and classification of these mollusca. 



The Author, in reply, briefly thanked the President and Dr. 

 A. M. Davies for their appreciative remarks, and the Fellows 

 present for their kind reception of his paper. 



