THE 



GEOLOGICAL MAGAZINE, 



NEW SERIES. DECADE V. VOL. IX. 



No. II.— FEBRUARY, 1912. 



I. — Some Account of the Geological "Woek of the late 

 Peofessok a. E. Tornebohm.^ 



By A. G. HOGBOM, Professor of Geology in the University of Upsala. 



(WITH A POETEAIT, PLATE HI.) 



AS already mentioned in this Magazine (September, 1911), the 

 Swedish geologist, Professor Alfred Elis Tornebohm, died on 

 April 21, 1911, at the age of 72. 



Professor Tornebohm's name is chiefly renowned in the scientific 

 world for an audacious theory in which he postulates an enormous 

 overthrust as governing the tectonics of the Scandinavian mountain 

 range. But his contributions to geological science in other respects 

 are also important enough to give him a distinguished place among 

 his contemporaries. His interest, outside of the geology of the 

 mountain range, was mainly engaged in microscopic petrography and 

 in deciphering the ore-bearing Archsean districts of his country. 



Professor Tornebolim was held in general esteem alike for his 

 important scientific works and for his sterling personal qualities. It 

 was, therefore, a great disappointment to his Swedish colleagues that 

 failing health rendered it impossible for him to take a more active 

 part in the geological congress held in Stockholm in 1910. 



A short account of Professor Tornebohm's life and a summary of his 

 more important works have been asked for by the Editors of this 

 Magazine, and thus a precious opportunity is afforded to one who, 

 as a younger colleague, has worked in the same fields of research. 



A. E. Tornebohm was born in Stockholm on October 16, 1838. 

 In his school and college days he was much interested in chemical 

 and physical experiments ; scholarships and fellowships attracted 

 him but slightly. Having in the years 1855-8 passed through 

 the Technical High School of Stockholm, he spent a year in the 

 State Printing Office of Vienna in Austria, there mainly studying 

 galvanoplastic methods of reproduction, allied to the more modern 

 collotype yirocess. His close acquaintance with these methods was of 

 value to him in publishing his geological maps later on. 



After his return to Sweden (1859) Tornebohm entered the newly 

 established Geological Survey as State Geologist, and worked there 



^ Professor of Mineralogy at the Technical College, Stockholm, 1878-97, and 

 Director of the Geological Survey of Sweden, 1897-1906. For. Corr. Geol. Soc. 

 Lond., 1910. 



DECADE V. — VOL. IX. — NO. II. 4 



