Reporta and Proccedinga — Gcohjical Suciety of London. 1S3 



igneous rocks, it does not rest on any assured experimental basis. 

 Differentiation dependent on, or connected with, the crystallization 

 of definite minerals was reviewed more favourably ; but it was 

 pointed out that all theories of differentiation which are based on 

 unaided molecular flow are subject to the criticism that the time 

 required to effect any important differentiation appears to be too 

 great. 



Reference was also made to recent work on the modification of 

 igneous magmas by the inclusion and assimilation of rocks through 

 which they pass ; and the conclusion was reached that the origin 

 of species, so far as igneous rocks are concerned, is a problem 

 the final solution of which has been handed on by the nineteeuth 

 century to its successor. 



The ballot for the Couucil and Officers was taken, and the followiu^ were declared 

 duly elected for the eusuino; vear: — Council: W. T. Blanford, LTj.D., F.R.S. ; 

 Sir John Evans, K.C.B., D.C.L., LL.D.. F.R.S. ; Professor E. J. Garwood. M.A. ; 

 Professor T. T. Groom, M.A., D.Sc. ; Alfred Ilarker, Esq., M.A. ; R. S. Ilerries, 

 Esq., M.A. ; William Hill, Esq. ; W. H. Iludlestou, Esq., M.A., F.R.S., F.L.S. ; 

 Prof. J. W. Judd, C.B., LL.D., F.R.S.; Lieut.-Gen. C. A. MoMahon, F.R.S.; 

 J. E. Marr, Esq., M.A., F.R.S.; Professor H. A. Miers, M. A., F.R.S. ; Rijrht 

 Rev. John Mitchiuson, D.D., D.C.L. ; IL W. Monckton, Esq.. F.L.S. : E. T. 

 Newton, Esq., F.R.S. ; G. T. Prior, Esq., M.A.; F. W. Rudler, Esq. ; Professor 

 H. G. Soeloy, F.R.S., F.L.S.; Professor W. J. Sollas, M.A., D.Sc, LL.D., F.R.S.; 

 J. J. H. Teall, Esq.. M.A., F.R.S. ; Professor W. W. Watts, M.A. ; W. Whitaker. 

 Esq., B.A., F.R.S. ; K. B. Woodward, Esq., F.R.S. 



Officers:— Prcsldoit: J. J. H. Teall, Esq., M.A., F.R.S. Vice-Presidents: 

 J. E. Marr, Es(i., M.A., F.R.S. ; II. W. Monckton, Esq., F.L.S. ; Professor 

 H. G. Seeley, F.R.S., F.L.S. ; W. Whitaker, Esq., B.A., F.R.S. Secretaries: 

 R. S. Herries, Esq. M.A. ; Professor W. W. Watts, M.A. Fnreir/n Stcretary : 

 Sir John Evans, K.O.B., D.C.L., LL.D., F.R.S., F.L.S. Trea-wrer: W. T. 

 Blanford, LL.D.. F.R.S. 



II. —February 20, 1901.— J. J. H. Teall. Esq., M.A., V.P.R.S., 

 President, in the Chair. 



The Address, which it is proposed to submit to His Majesty the 

 King, on behalf of the President, Council, and Fellows, was read as 

 follows, and the terms thereof were approved : — 



'•TO THE KLXG'S MOST EXCELLENT M.UESTY. 



"May it ple.\se your M.uesty, 



"We, your Majesty's most dutiful and loyal subjects, the President, 

 Council, and Fellows of the Geolo-ical Society of Loudon, humbly be- leave to otter 

 to your Maiostv our most profound and heartfelt sympathy in the great sorrow wlucl. 

 has fallen on vou in the death of our late h.-lovrd Sovcnign Queen Victoria and to 

 most resp(K'tfullv express the deep gric^f tliat we, in com.non with all your .Majestj s 

 subjects, feel at'the great loss which has befallen the nation. « ♦ . 



'•'While thus exFessing our grief, we most humbly beg leave to offer to ) our 

 Majesty our most sincere and unfeigned congratulations on your Majesty »> »«^e8»ion 

 to the throne of your ancestors. Our knowledge ol the grea interest » ^ our 

 Majesty has always taken in all matters relating to the wellaie of yon. ^utjectH 

 makes us feel with confidence that seience will continue to advance during )our ic g n 

 as in that of Her late Majesty of In-ioved memory. ^^ e reeall with p r u e that )our 

 Majesty's father, the late Prince Consort, was lor many years a J^ellovv ot tni* 



^°" And we shall ever pray that your Majesty may long be spared to reign over 

 a happy and contented people." 



