Yol. 50.] ANNIVERSARY ADDRESS OF THE PRESIDENT. 53 



satisfaction to all for over 40 years. During this period he paid 

 considerable attention to geology, and wrote several papers, chiefly 

 for the Manchester Geological Society. He died early in January 

 1894, at the age of 74, and was buried at Ehosneigr, on the coast 

 of Anglesey. 



Count Alexander von Keyserling, Eoreign Member of the 

 Geological Society, was born on the 15th August, 1815, atKabellen, 

 in Courland. In early life he studied at the University of Berlin 

 under Humboldt, Von Buch, and other distinguished men of that 

 period. It was for this reason that, in 1841, he was selected 

 along with Lieut. Kokscharow to accompany Murchison and De 

 Yerneuil on their second tour in Russia, when geological obser- 

 vations were made in the governments of Vv llna, Courland, Livonia, 

 and Esthonia. He also remained with Murchison's party during the 

 special geological survey which was made by order of the Emperor 

 Nicholas, and the results of which were given to the world in ' The 

 Geology of Bussia and the Ural Mountains,' published in 1845. 



In the year 1842 Yon Keyserling visited England and Eranoe 

 for the purpose of comparing the rocks of these countries, in the 

 field, with the rocks of Bussia, and also to collect specimens for 

 the Institute of Mines at St. Betersburg. With this object he and 

 Murchison started from London and practically made the tour of 

 Great Britain in their endeavour to gather materials for the illus- 

 tration of their Russian work ; visiting amongst other places the 

 county of Durham, in order to compare the rocks and fossils of 

 that region with those of the Russian province of Perm. It was 

 in this year also, when Murchison was President of the Society, 

 that a joint paper by himself, De Yerneuil, and Yon Keyserling, 

 * On the Geological Structure of the Central and Southern Regions 

 of Russia and the Ural Mountains,' occupied three successive 

 meetings in its delivery. 



In 1844 Yon Keyserling was again with Murchison, who had been 

 charged to convey to the Emperor Nicholas a gold medal struck in 

 honour of his visit to the Queen of England. Eurther information 

 was then given by him to Sir Roderick for their great work on 

 the geology of Russia and the maps illustrating it. The subsequent 

 career of Yon Keyserling is less directly connected with that of 

 English geologists ; but we find that he continued to be honoured 

 in his own country, where he was for some time connected with 

 the Imperial Corps of Mines, and, in 1859, was appointed Assistant 

 State Geologist. Between 1862 and 1869 he was Dean of the 

 University of Dorpat, returning in the latter year to Raykiill, in 



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