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1. Descriptions of new fishes collected by A.L. Heermann, naturalist attached to the survey of the Pacific Railroad route under Lieut. R.S. Williamson, U.S.A

Author(s):

Girard, Charles, 1822-1895 author

Publication:

[Philadephia?] : [publisher not identified], [1854]

Subject(s):

Fishes -- classification
United States

2. On the genus Cottus auct

Author(s):

Girard, Charles, 1822-1895 author

Publication:

[United States?] : [publisher not identified], [1849]

Subject(s):

Perciformes -- classification
Terminology as Topic

3. An essay on the classification of Nemertes and Planariæ: preceded by some general considerations on the primary divisions of the animal kingdom

Author(s):

Girard, Charles, 1822-1895 author

Publication:

[New Haven?] : [publisher not identified], [1851]

Subject(s):

Invertebrates -- classification
Aquatic Organisms -- classification
Planarians -- classification

4. Essay on the classification of Nemertes and Planariæ: preceded by some general considerations on the primary divisions of the animal kingdom

Author(s):

Girard, Charles, 1822-1895 author

Publication:

[United States?] : [publisher not identified], [1852?]

Subject(s):

Invertebrates -- classification
Aquatic Organisms -- classification
Planarians -- classification

5. Historical sketch of Gordiaceæ

Author(s):

Girard, Charles, 1822-1895 author

Publication:

[Philadelphia?] : [publisher not identified], [1851]

Subject(s):

Helminths -- classification

6. Life in its physical aspects

Author(s):

Girard, Charles, 1822-1895 author

Publication:

Washington : Printed by R.A. Waters, 1855

Subject(s):

Physiological Phenomena
Life