part 1] AXNIYERSARl' ADDRESS OF THE PRESIDENT. lix 



were seen in a series of papers published in the * G-eological Maga- 

 zine.' In the course of these studies he was led to consider more 

 closely the nature of igneous action, and at this time also he first 

 formed that conception of different ' petrographical provinces ' 

 which has since proved so fruitful. 



The turning-point of Judd's career came in 1876, when he was 

 chosen to succeed Kamsay as Professor of Geology in the Koyal 

 School of Mines. The School was then housed in Jermyn Street, 

 but a little later the Geological division was removed to South 

 Kensington, where it subsequently became part of the Roj'al 

 College of Science. Advised by Huxley, and profiting also by 

 what he had seen in Continental schools of geology, the new 

 Professor built up a thorough and comprehensive S3'stem of 

 instruction, in which the practical element occupied a prominent 

 place. His own extensive knowledge and organizing talent, with 

 the help of a succession of able assistants of his own training, soon 

 placed the Royal College of Science in the foremost rank as a 

 training-school for geologists. The cordial relations which he 

 always cultivated with his students did not cease when they passed 

 out of his class, and many geologists at home and abroad still hold 

 the Professor in grateful remembrance. 



His professorial engagements did not, however, preclude other 

 interests. In 1865 he had been elected a Fellow of this Society, 

 and in 1878 he had become one of its Secretaries, which office he 

 held until his election to the Presidency eight years later. In 

 the same year, too, he had married Jeannie Frances Jeyes, a 

 niece of the Midland geologist Samuel Sharp. Opportunities for 

 field-work were now more restricted ; but, besides carrying out 

 a revision of the Tertiaries of the Hampshire Basin, he found 

 time to revisit the Western Isles and to make there a large 

 collection of the igneous rocks. With this material he entered 

 upon a new line of research, and in the years following he j^roduced 

 a series of petrographical memoirs remarkable for their originality 

 and breadth of view. It was more particular^ for this work that 

 he received in 1891 the award of the Wollaston Medal ; but many 

 other subjects from time to time engaged his attention, and it is 

 impossible in a short notice to do justice to the long list of his 

 published works, showing an activity wliich embraced almost every 

 branch of geology. 



After his retirement in 1905, though his pen was not idle, his 

 energy began to suffer from the state of his health. A partial 



