220 Miscellanies, 



lish a series of types of these groups, many of which have been adopt- 

 ed as classical, in such a maimer as will perpetuate his name among 

 the original discoverers of the age in which he lived. He was born 

 on the oolite formation at Churchill, in the county of Oxford, in 

 1769. When a child, he was in the habit of collecting terebratulse 

 from the oolite rocks in the fields of his native village, which he used 

 as substitutes for marbles. He had often expressed a wish to be buried 

 in this formation, on which he was born and educated, and the his- 

 tory of which he had so much elucidated. He was interred in the 

 church-yard of the beautiful Norman church of St. Peter, in Northamp- 

 ton, which stands on the oolite formation. 



Sir John St. Aubyn, who died in 1840, was one of the founders and 

 early vice-presidents of the Geological Society. 



Brigadier Charles Silvertop, F. G. S., died at Rennes, in June, 

 1840, on his way to the Pyrenees and Italy. He did much to elucidate 

 the geology of Spain. 



Jeus Esmark, Professor of Mineralogy in the University of Chris- 

 tiana, was one of the many disciples of the School of Freyberg, and 

 became deeply imbued with the doctrines of Werner. He published 

 his tour through Hungary, 1 vol. 8vo. 1798; also, 1829, his tour in 

 Norway ; also, many detached memoirs on mineralogy. He discov- 

 ered the chromate of iron in Norway, also the Norwegian datholite in 

 1806, which was then called Esmarkite. 



Frederick Mohs, Professor of Mineralogy in Vienna, was born at 

 Gernrode, in the Hartz mountains, about 1770. He was a pupil of 

 Werner, and succeeded to his chair of mineralogy in the Mining 

 Academy at Freyberg, but in 1826 went to reside at Vienna, as Prof, 

 of Mineralogy and Superintendent of the Imperial Cabinet. In 1804 

 he published " a detached account illustrated with a ground plan of 

 the mines and mining operations at Hiramelsfiirst, near Freyberg." 

 His great work on Mineralogy, or the Natural History of the Mineral 

 Kingdom, is best known in this country by its translation, published at 

 Edinburgh, with considerable additions by his pupil, Mr. William Hai- 

 dinger, in 1825, 3 vols. 8vo. He died in Italy, 20th Sept. 1839, at 

 Agardo, near Belluno, having undertaken a tour into that country for 

 the purpose of studying the phenomena of volcanoes. 



Death of Littrow. — Science has suffered a severe loss in the recent 

 death of the celebrated astronomer, Von Littrow, Director of the Ob. 

 servatory and Professor of Astronomy in the University of Vienna, — 

 Vienna, Dec. 3, 1840. N. Y. Jour, of Com. 



Death of Poisson. — M. Poisson, universally known as an eminent 

 mathematician and philosopher, died at Paris, April 25, 1840, aged 58. 



