12 PROCEEDINGS OF THE BOSTON-CAMBRIDGE MEETING 



The eighth session of the International Congress of Geologists. American 

 Geologist, vol. 27, 1901, pp. 335-342. 



History of the Caribbean islands from a petrographic point of view. (Ab- 

 stract.) Proceedings of the Philadelphia Academy of Natural Sciences, 

 vol. 55, 1903, pp. 396-400. 



Geogenesis and some of its bearings on economic geology. Transactions of the 

 American Institute of Mining Engineers, vol. 35, 1905, pp. 298-308. 



The classification of coals. Discussion of paper by M. R. Campbell. Transac- 

 tions of the American Institute of Mining Engineers, vol. 36, 1906, pp. 825- 

 833 (Bi-Monthly Bulletin, No. 8, March, 1906, pp. 239-246). 



MEMOIR OF DANIEL W. LANGTON, JR. 

 BY EUGENE A. SMITH 



The subject of this sketch was born May 5, 1864, in Mobile county, 

 Alabama. His father, Daniel W. Langdon,* Sr., for a number of years 

 had charge of a nursery garden belonging to his uncle, Hon. Charles C. 

 Langdon, at Langdon Station, on the Mobile and Ohio Eailroad, a few 

 miles north of Mobile, and was also upon the staff of the Mobile Eegister. 

 The uncle was a prominent man in State politics for many years, was a 

 member of the legislature, trustee of the A. & M. College, etcetera. The 

 Langdons were of New England extraction, but the uncle and nephew 

 spent most of their lives in Alabama. 



Young Langton spent his early years at his father's home at Langdon 

 Station under the tutelage of his mother, a woman of exceptionally wide 

 reading and information. In addition to the formal teaching, she kept 

 him supplied with all available periodicals and magazines, thus develop- 

 ing in him an interest in current events and a taste for general reading 

 which he never lost. As a youth he attended a private school in the city 

 of Mobile kept by Prof. Amos Towle, by whom he was prepared for col- 

 lege. While at school in Mobile young Langton was a member of the 

 household of his kinsman, Col. William A. Buck, whose home was in 

 Summerville, a suburb of Mobile. The Buck family is one of the most 

 cultured and prominent of the older families of this section of the State, 

 and with such surroundings the boy had unusual opportunities for mental 

 development. 



In the autumn of 1879 he entered the University of Alabama, from 

 which institution he was graduated with the degree of Bachelor of Arts 

 in 1882. From the same institution he received in 1888 the degree of 

 Master of Arts, and in 1892 that of Doctor of Philosophy. 



* The family in Alabama spelled the name Langdon, but the subject of this sketch, 

 after he established himself in New York, adopted the spelling Langton, since he found 

 that to be the original spelling of the name. 



