236 Reports and Proceedings — Geological Societt/ of London. 



Reference was made to the issue of the " History of the Geological 

 Society" prepared and edited by Mr. H. B. Woodward. It was 

 intimated that the Council had decided to publish, in a style uniform 

 with that of the Quarterly Journal, a Centenary Record, which would 

 include, besides a general account of the proceedings at the centenary 

 celebration, the centennial address delivered by the President and the 

 addresses of congratulation received from all parts of the world. 



The list of Awards of the various Medals and Proceeds of Donation 

 Funds in the gift of the Council was read. 



The President handed the WoUaston Medal, awarded to Professor 

 Paul von Groth, F.M.G.S., to Mr. F. W. Rudler, I.S.O., for trans- 

 mission to the recipient, addressing him as follows : — 



Mr. Eudler, — The Council of the Geological Society has this year assigned its 

 highest distinction, the WoUaston Medal, to Professor Paul von Groth in recognition 

 of the value of his lifelong services in the investigation of ' ' the mineral structure of 

 the Earth." His original researches have placed him among the leaders of mineralogy 

 and crystallography in our day ; and his right to that eminent position has heeu 

 greatly enhanced by the genius which he has shown in the teaching of his subject, by 

 the organization of his laboratory for advanced training, by the admii'able arrangement 

 and execution of his text-books, and by the zeal and success with M'hich for thirty 

 years he has edited and published his now indispensable " Zeitschrift fiir Krystallo- 

 graphie und Mineralogie. ' ' His laboratory has become the Mecca of modern mineralogy, 

 to which pilgrims repair from all parts of the world to learn the methods of the great 

 master at Munich. His remarkable personal charm has endeared him to all who 

 have come into close contact with him, and who discover that he is at once one of the 

 most retiring and yet most popular of scientific men. 



It is to myself a peculiar pleasure that I should be privileged on the present 

 occasion to transmit the award of the Council to so old a personal friend of my own. 

 He will, I am sure, regard the Medal with special interest, since it bears the name 

 and the effigy of one of the foremost of English mineralogists, whose reflecting gonio- 

 meter was doubtless a familiar instrument in Professor von Groth's hands from his 

 student-days onwards. In asking you to receive it for him, I would wish you to 

 convey with it an expression of the cordial wishes of the Society for his prolonged 

 health and activity. We earnestly trust that he will not only be able to complete 

 the gigantic task of his " Chemische Krystallographie," but continue for many years 

 thereafter to reap the fruits of his labour by witnessing the quickened advance of the 

 science to which he has so unremittingly devoted his strenuous life. 



Mr. Rudler, in reply, read the following message received from the 

 recipient : — 



Mr. President, — I regret that official duties at Munich prevent me from coming to 

 London to receive the Wollaston Medal, and from thanking in person the Council of 

 the Geological Society for the great honour conferred upon me. 



As my researches in Physical and Chemical Crystallography have not been very 

 closely related to Geology, while my Mmeralo-geological work on the mineral deposits 

 of the Alps, the rocks of the Vosges, etc., has been of itself too unimportant to have 

 afforded a reason for the gift to me of the highest distinction that the Geological 

 Society of London has to bestow, I am compelled to regard the award of the Medal 

 as intended to be a recognition of my work, during many years, as a teacher of 

 Mineralogy and Crystallography to pupils who were, many of them. Geological 

 students. 



I rej oice to be able to say that from no country have better pupils come to ray 

 laboratory and lectures than from England itself, and that it has been a great 

 happiness to continue with such pupils the work which Professor Miller founded at 

 Cambridge with his introduction of Rational Indices, and which my highly-esteemed 

 friend Professor MaskeljTie did so much to encourage at Oxford by his lectures on 

 Crystalline Symmetry. 



In this sense, as a fellow- worker in the scientific training of the junior mineralogists 

 of England, I have pleasure in accepting, with the most hearty thanks, the distinction 



