TRUBNER & CO., 60, PATERNOSTER ROW. 
.19 
Journal of the Academy of Natural Sciences of Philadelphia —Continued. 
Descriptions of New Species of Coleopterous Insects, inhabiting the United States, by 
T. Say (continued) 
Description of a Land Tortoise from the Gallapagos Islands, commonly known as the 
“ Elephant Tortoise,” by R. Harlan, M.D. 
Descriptions of New Species of Coleopterous Insects inhabiting the United States, by 
T. Say (concluded). 
Genera of North American Reptilia, and a Synopsis of the Species, by R. Harlan, M.D. 
Description of some New Species of North American Insects, by N. M. Hentz. 
Remarks on the. Limestones of the Mississippi Lead Mines, by E. James, M.D. 
Descriptions of three Species of the Genus Cremastocheilus, by T. W. Harris, M.D., 
of Milton, Mass. 
List of Donations to the Cabinet. 
Alphabetical Index. 
Plates of Yol. Y. 
Yol. YI. Part I. 7 Plates. 8vo, pp. iv. and 178. Philadelphia, 1827. 
CONTENTS. 
List of Officers for 1827. 
Genera of North American Reptilia, and Synopsis of the Species, by R. Harlan, M.D. 
(continued). 
Remarks on the Osmunda Claytoniana. of Linnaeus, by S. W. Conrad. 
Analysis of Cyanite and Fibrolite, and their Union in one Species under the name of 
Disthene, by Lardner Vanuxem. 
Analysis of Tabular Spar, from Bucks County, Penn., with a Notice of various Minerals 
from the same locality, by S. G. Morton, M.D. 
Description of a new Fossil Species of Ostrea, by the same. 
Description of a New Species of Grampus, inhabiting the Coast of New England, by 
R. Harlan, M.D. 
Additional Observations on the North American Reptilia, by the same. 
Notes of certain prepared Specimens of Quadrupeds in the possession of a gentleman 
lately returned to Philadelphia from his Travels in the United States and Terri¬ 
tories, by R. Harlan, M.D. 
List of Officers for 1828. 
Geological Observations on the Secondary, Tertiary, and Alluvial Formations of the 
Atlantic Coast of the United States, arranged from the Notes of Lardner 
Vanuxem, by S. G. Morton, M.D. 
Description of the Fossil Shells which characterize the Atlantic Secondary Formation 
of New Jersey and Delaware, by S. G. Morton, M.D. 
Description of a New Species of Salamaridra, by R. Harlan, M.D. 
Notice of a Mineral which, approaches to the Rildstein of Werner with Remarks on 
the connection of Bildstein with Feldspar, by S. W. Conrad. 
Deseription of a New Species of Juncus, by S. W. Conrad. 
Description of two New Species of Shells of the Genera Scaphites and Crepidula; with, 
some Observations on the Ferruginous Sand, Plastic Clay, and Upper Marine 
Formations of the United States, by S. G„ Morton, M.D. 
Note, containing a Notice of some Fossils recently discovered in New Jersey, by S. G. 
Morton, M.D. 
Remarks on the Pedunculated Cirrhipedes ; with Descriptions of two New Species of 
Otion, by Reynell Coates, M.D. 
Note-on the Geographical Distribution of the Anatifa Vitrea, by the same. 
Note on the Specific Heat of the Atoms of Bodies, by Alex. Dallas Bache. 
Notice of a New Species of Corallorhiza, by S. W. Conrad. 
Note on the Anphiuma Means, by R. Harlan, M.D. 
Description of New Dipterous Insects of the United States, by Thomas Say. 
VoL YI. Part II. 8 Plates. 8vo,. pp. 181 to 326. Philadelphia, 1880, 
CONTENTS. 
Notice of the Fall of a Meteoric Stone, at Deal, in New Jersey, by Robert Vaux and 
Thomas M‘Euen, M.D. 
Descriptions of North American Dipterous Insects, by Thomas Say. 
Additional Observations on the Geology and Organic Remains of New Jersey and 
Delaware, by S. G. Morton, M.D. 
On the Geology and Organic Remains of a part of the Peninsula of Maryland, by 
Timothy A. Conrad. 
Description of two New Species of the Linnsean Genus Lacerta, by : T.. R. Peale and J. 
Green, M.D. 
Description of New North American Hemipterous Insects, by Thomas. Say. 
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