XXX Annual Report of the CoiDieil. 



himself one of the founders of the active Socicte Geologique de 

 Belgique. In addition to membership of many other Scientific 

 Societies in Belgium, Moscow, Vienna, Luxembourg, etc., he 

 received many civil honours, notably the Commandeur de 

 rOrdre de Leopold, and Otiticier de I'Ordre des Sts INLaurice el 

 Lazare. 



His earlier researches were on the L'assic rocks of Luxem- 

 bourg, on which he published, in 1853, in collaboration with 

 F. Chapius, an important monograph, "Description des Fossiles 

 des Terrains Secondaires de la Province de Luxembourg." His 

 later researches led him over the whole range of stratified rocks 

 in Belgium, from the Cambrian to the most recent, but his con- 

 tributions to our knowledge of the very important Devonian 

 rocks of that country stand out prominently. He did much 

 towards unravelling the complicated tectonic geology of his own 

 country, and was an ardent worker on the correlation of the 

 stratigraphical series in England and Belgium. The latter prob- 

 lem was the cause of his being a frequent contributor to the 

 Quarterly Journal of the Geological Society and tiie Geological 

 Magazine. Among his other works, his " Prodrome d'une 

 Description Geologique de Belgique," published in 186S, and 

 revised in 1880, is notable, together with his " Carte geologique 

 de la Belgique et des Provinces voisines, 1899." It is a tribute 

 to his lasting energy that he presented to the Geological Society 

 a new map of Belgium, only a few months before his greatly 

 lamented death. G. H. 



Eleuthkue Elie Nicol.\s Masc.akt was born at Quarouble, 

 near Valenciennes, on February 20lh, 1S37. Having completed 

 his studies at the Ecole normale superieure of Paris, he was 

 admitted to the degree of Docteur-es-Sciences in the year 1864, 

 and soon afterwards received an appointment at the " Lycee "' 

 of Versailles as Professor of Physics. In the year 1872 he 

 succeeded Regnault at the college de France, where he filled 

 the chair of Physics until he took charge of the Central Bureau 

 of Meteorology in 1878. 



