n8 GEOLOGY 



of all deserts, and connected by railways with different 

 sections of the desert area, a student may work under 

 the guidance of specialists who have already acquired a 

 wide reputation by their studies of arid conditions. 



Paris. At the University of Paris the work in geology 

 is in charge of Emile HAUG, whose major investigations 

 have dealt principally with the great problems of sedi- 

 mentation in connection with areas of denudation. His 

 principal monograph upon this subject is "Les geosyn- 

 clinaux et les aires continentales, Contributions a 1'etude 

 des transgressions et des regressions marines, " published 

 in 1900. He has also contributed to the study of the 

 great nappes of the Alps and his "Traite de geologic " 

 (the second volume appeared in 1911) is the most mod- 

 ern of geological treatises printed in the French language. 

 Physical geography is in charge of Emmanuel DE MAR- 

 TONNE, well-known for his studies in the Carpathians and 

 Roumania, and for his " Traite de geographic physique," 

 which was published in 1909 and is the best general 

 treatise upon the subject in any language. 



At the College de France, the teaching of geology is 

 conducted by Lucien CAYEUX, well-known for his studies 

 upon the microscopical structure of sediments. 



At the ficole Superieure des Mines, geology is in 

 charge of Pierre TERMIER, who is also the Chief Engineer 

 of Mines and Director of the Service de la Carte Geolo- 

 gique. Outside the special field of mining, TERMIER has 

 acquired distinction from his investigation of the prob- 

 lems of Alpine structure. 



Louis DE LAUNAY, well-known for his studies of ground 

 water and ore deposition, is in charge of geology at the 

 ficole Nationale des Fonts et Chaussees. 



At the ficole des Hautes fitudes Scientifiques of the 

 Institut Catholique, Jean BOUSSAC, known for his studies 

 of Alpine structure, occupies the chair of geology. 



