ANNITEKSAEY ADDRESS OF THE PRESIDENT. 5 I 



contributions to that science, there is evidence that at a very early 

 period he had begun to develop a taste for those palseontological 

 studies, the successful pursuit of which constitutes his chief title 

 to fame. The Carboniferous rocks around the town where he 

 resided afforded abundant materials for study, and the results of his 

 labours appeared in the well-known ' Description des Animaux 

 Possiles qui se trouvent dans le Terrain Carbonifcre de Belgique,' 

 a work consisting of two volumes and a supplement, which appeared 

 between the years 1842 and 1851. 



In 1853 he was awarded the Wollaston Fund from this Society, 

 to aid him in his important researches, and in the same year was 

 elected one of our Foreign Members. 



For many years de Koninck laboured unweariedly in the investi- 

 gation of the fossils of the Carboniferous Limestone of Belgium, 

 and the comparison of them with those of other districts. The 

 results of these studies appeared in a great number of papers 

 contributed to various journals and in the five volumes of the 

 ' Annales du Musee ' of Brussels, of which he was the author. 



In the year 1875 de Koninck received from this Society the 

 WoUaston Medal, in recognition of his paloeontological researches, 

 though it is a curious circumstance that it was not till the following 

 year that he became titular Professor of Palaeontology. De Koninck 

 was the author of elementary treatises on both Chemistry and 

 Geology, and of several papers and addresses dealing with the 

 philosophical aspects of the branch of science to which he devoted 

 the greater part of his energies. Deeply beloved by a large circle 

 of pupils and friends, honoured by many marks of favour not only 

 from his own Sovereign but from those of other States, and 

 acknowledged all the world over as the greatest authority on all 

 questions pertaining to his own particular studies, our distin- 

 guished Foreign Member died on the 16th of July, 1887. 



M. Jules Desnotees was born in 1801. As early as the year 

 1822 we find him writing on the subject of calcareous rocks 

 possessing a peculiar odour, and during the next forty years he 

 wrote a number of valuable memoirs on the Jurassic, Cretaceous, and 

 Tertiary strata of the Paris Basin and of Northern France. M. Des- 

 noyers became a Member of the Geological Society of France at the 

 period of its first establishment in 1830 ; he was a Member of the 

 Institute of France, and librarian of the N'atural History Museum of 

 Paris. M. Desnoyers's latest contributions to Geological Science 



