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On the microscopical structure of er one indicating the 
origin of minerals and rocks; by H.-C. Sorby. Londres, 1858; 
in-8°, 
On the structures produced by the currents present during 
the deposition of stratified rocks; by H.-C. Sorby. Londres. 
1859; in-8°. 
On the organic origin of the so-called « crystalloids » of 
the chalk; by H.-C. Sorby. Londres, 1861 ; in-8°. 
De l'action prolongée de la chaleur et de Veau sur diffé- 
rentes substances ; par H.-C. Sorby. Paris, 1860; in-8°. 
Report of the thirty meeting of the british Association for 
the advancement of science; held at Oxford in june and july 
1860. Londres, 1861 ; in-8°. 
The numismatic Chronicle, ahd journal of the numismatic 
Society, new series, n° III. Londres, 1861; in-8°. 
The american Journal of science and arts, second series, 
vol. XXXII, july. New-haven; 1861, in-8°. 
