iv PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [vol. lxxiv,. 



December 5th, 1917. 



Dr. Alfred Harker, F.R.S., President, 

 in the Chair. 



Thomas Robert Ablett, Pembroke Lodge, Outram Road, Addis- 

 combe (Surrey) ; John Albert Bullbrook, 15 Abercromby Street, 

 Port of Spain, Trinidad (B. W. I.) ; Charles Herbert Henry Gore,. 

 69 Eastcott Hill, Swindon (Wiltshire) ; George Thomas Heal, 

 A.M.Inst.M.M., care of the High-Speed Steel Alloys, Ltd., Tavoy 

 (Burma); William Blomtield Hume. B.Sc, United B. W. I. 

 Petroleum Syndicate, Port of Spain, Trinidad (B. W. I.) ; Francis 

 Sear Jolly, 14 Allerton Road, Stoke Newington, N. 16 ; William 

 McDonald, 53 Dalzell Street, Moor Row (Cumberland) ; Stephen 

 Miall, LL.D., B.Sc, 28 Belsize Grove. N.W. 3 ; Evan John 

 Morris, Llwyncelyn, Bangor (North Wales) ; Clive Edward 

 Effingham Pargeter, A.M.Inst.M.M., Westbrook House, Hounslow 

 (Middlesex) ; Sir John Frecheville Ramsden, Bart., Bulstrode,. 

 Gerrard's Cross (Buckinghamshire) ; Albert Ernest Thomas,. 

 M.Inst.M.M., Oak House, Minsterley, Shrewsbury ; and Arthur- 

 Elijah Trueman, M.Sc, 598 Berridge Road, Nottingham, were- 

 elected Fellows of the Society. 



The List of Donations to the Library was read. 



A Demonstration on the Application of X-Rays to t he- 

 Determination of the Interior Structure of Micro- 

 scopic Fossils, particularly with reference to the 

 Dimorphism of the Nummulites, was given bv Edward 

 Heron-Allen, F.L.S. F.G.S., Pres.R.M.S., and J. E. Barnard, 

 F.R.M.S. 



Mr. Heron- Allen said tbat, in the year 1826, Alcide d'Orbigny 

 published among the innumerable, and for many years unidentified, 

 nomina nuda that compose his 'Tableau Methodique de la Classe 

 des Cephalopodes ' the name Hot alia (labia. This species was 

 left untouched by Parker & Jones in their remarkable series of 

 articles on the ' Nomenclature of the Foraminifera.' The French 

 naturalist G. Berthelin was the first investigator to unearth and 

 make use of the ' Planches inedites ' which had been partly com- 

 pleted by D'Orbigny for the illustration of his great work upon 

 the Foraminifera, a work that was never published. Working 

 with Parker & Jones's paper, Berthelin made for his own use 

 careful tracings of 246 of A. d'Orbigny's unfinished outline- 

 sketches. These sketches were never elaborated by D'Orbigny upon 

 the ' Planches,' which are still preserved in the Laboratoire de 

 Paleontologie under the care of Prof. Marcellin Boule ; among them 

 was found the sketch of Mot alia dubia. On the death of Berthelin 

 the tracings passed into the possession of Prof. Carlo Fornasini 

 of Bologna, who reproduced them all in a valuable series of papers 

 published between the years 1898 and 1908. Fornasini's opinion 



