LEH—LEI 307 

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; der Erzeugung der Metalle. 8vo. Berlin, 1753. 
-——. Versuch einer Geschichte von Flotz-Gebiirgen, betreffend deren 
Entstehung, Lage, darimne befindliche Metallen, Mineralien und 
Fossilien. 8vo. Berlin, 1756. 
-——. L/art des mines, ou Introduction aux connoissances nécessaires pour 
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-——. Cadmiologia, oder Geschichte des Farben-Kobolds, nach seinen 
: Nahmen, Arten, Lagerstiidten, ete. Ato, Konig gsberg, 1761. 
—. Physikalisch-chymische Schriften, als ee Fortsetzung der Probier- 
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, 2te Auflage. 8vo. Berlin, 1775. 
—. Entwurf einer Mineralogie zum Dienst der Studierenden. 3te 
| Auflage. 8vo. Frankfort and Leipzig, 1769. 
Le Hon (H.). Périodicité des grands déluges resultant du mouvement 
eraduel de la ligne des apsides de la terre. (Tract.) 
8vo. Brussels, Leipzig, and Paris, 1858. 
Histoire complete de la grand eruption du Vésuve de 1631. 
Svo. Brussels, 1865. 

——. See Koninox (L. de). 
Leibnitz (Gottfried Wilhelm von). Summa Polyhistoris Protogaea,.. . 
in lucem edita a Christian Ludowic Schiedius. 4to. Gottingen, 1749. 
Leichhardt (Ludwig). Notes on the Geology of parts of New South 
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(Tract.) 8vo. Sydney, 1866. 
Leidy (Joseph). On a new genus and species of fossil Ruminantia: 
Poebrotherium Wilson. (Tract.) 8vo. Philadelphia, 1847. 
On a new fossil genus and species of Ruminantoid Pachydermata : 
Merycoidodon Culbertsonn. (Tract.) 8vo. Philadelphia, 1848. 
On Bathygnathus borealis, an extinct Saurian of the New Red 
Sandstone of Prince Edward’s Island. (Tract.) 2 copies. 
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(On Mammalian and Chelonian Fossils from the Mauvaises Terres 
of Nebraska.) (Tract.) 8vo. Washington ?, 1852. 
(On the remains of Extinct Cetacea from the Greensand of New 
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——, The Ancient Fauna of Nebraska. (Tract.) 4to. Washington, 1853. 
- _ A Memoir on the extinct Sloth Tribe of North America. (Tract.) 
* Ato. Washington, 1855. 
= Descriptions of some Remains of Fishes from the Carboniferous 
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some Extinct Mammalia. (Tract.) Ato. Philadelphia, 1856. 
/_——. Notice of the Remains of the Walrus discovered on the coast of 
the United States ; Description of remains of Fishes from the Car- 
| __ boniferous Limestone of Illinois and Missouri; Remarks on Sauro- 
cephalus and its Allies; Observations on the Extinct Peccary of 
North America; (and) Remarks on the Structure of the Feet of 
———— Megalonyzx. (Tract.) 4to. Philadelphia, 1857. 
_ Extinct Vertebrata from the Judith River and Great Lignite For- 
mations of Nebraska. (Tract.) 2 copies. 4to. Philadelphia, 1859. 
See also Haypsn (F. V.). . | 
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