500 Miscellaneous Intelligence. 



searches on the peat formations. In 1845 he was commissioned 

 by the government of Prussia to make explorations on the peat 

 bogs of Europe, and his report on the subject appeared in 1844. 



In 1848 he came to the United States and became a resident of 

 Columbus, where lie published different works on Mosses, in con- 

 nection with Mr. W. S. Sullivant. From 1852 to 1885 Professor 

 Lesquereux was attached as botanical paleontologist to geological 

 surveys. His published memoirs and volumes exceed fifty in 

 number. Of them, the more important are the following: Reports 

 in connection with the First Geological Survey of Pennsylvania, 

 1858; with that of Arkansas, (1860); with that of Illinois, vols. 

 II and IV (1866 to 1880) ; that of Mississippi, the Tertiary Plants 

 (1863); the United States Geological and Geographical Survey 

 of the Territories under Dr. F. V. Hayden, including a Mono- 

 graph of the Cretaceous Flora of the Dakota Group, (1874), a 

 Monograph of the Tertiary Flora (1878), and a Monograph of the 

 Cretaceous and Tertiary Flora, 1883 ; with that of the second Geo- 

 logical Survey of Pennsylvania, on the Coal Flora of Pennsylvania 

 and the United States, three volumes, one an atlas of plates, 

 1880-1884. He published also a Monograph of the Pliocene Flora 

 of the Auriferous Gravel Deposits of the Sierra Nevada, 1875, 

 and a Manual of the Mosses of North America (this last in con- 

 nection with Mr. Thomas P. James of Cambridge). He was 

 a member of the United States National Academy and of 

 twenty scientific societies of Europe and of the United States, 

 corresponding member of the Geological Society of London ; 

 corresponding member of the Geological Society of Belgium, 

 honorary professor oi the Academy of Neuchatel, etc. For the 

 past five years he has remained at home, surrounded by his books 

 and specimens of fossil plants that were constantly arriving for 

 his study and determination, always regretting that his age pre- 

 vented him from continuing in the field. 



He was married in 1830 to a lady of rank, of Eisenach, Baroness 

 Sophia von Wolffskeel, daughter of General von Wolffskeel. He 

 leaves three sons and one daughter. 



James Prescott Joule. — Dr. Joule of Manchester, the eminent 

 English physicist, died on the 11th of October, at the age of 70. 

 He led a quiet life with little prominence before the public, but 

 few workers in physical science have been able to accomplish so 

 much as he, or have left behind sc enduring a record. His 

 experimental researches covered a wide range of subjects and are 

 always of high order, but his contributions to the mechanical 

 theory of heat and the conservation of energy stand out above 

 all the rest as of a truly epoch-making character. Two volumes 

 of his collected papers have been published recently (1884 and 

 1887) under his editorship, which have put the results of his 

 industrious and fruitful life in convenient and accessible form. 



