Lea, Isaac
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2

Unio Forms a Byssus:

Lea, Isaac
Science.  ns-3 (1884)  62 - p. 434-434 , 1884
 
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3

Unio Forms a Byssus:

Lea, Isaac
Science.  ns-3 (1884)  62 - p. 434-434 , 1884
 
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4

Further Notes on "Inclusions" in Gems, Etc:

Lea, Isaac
Proceedings of the Academy of Natural Sciences of Philadelphia.  28 (1876)  - p. 98-107 , 1876
 
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5

Description of Seven New Species of Unionidæ of the United ..:

Lea, Isaac
Proceedings of the Academy of Natural Sciences of Philadelphia.  25 (1873)  3 - p. 422-423 , 1873
 
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6

Description of Three New Species of Uniones of the United S..:

Lea, Isaac
Proceedings of the Academy of Natural Sciences of Philadelphia.  25 (1873)  3 - p. 424 ff. , 1873
 
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7

Descriptions of Twenty-Nine Species of Unionidæ from the Un..:

Lea, Isaac
Proceedings of the Academy of Natural Sciences of Philadelphia.  24 (1872)  2 - p. 155-161 , 1872
 
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8

Descriptions of Twenty New Species of Uniones of the United..:

Lea, Isaac
Proceedings of the Academy of Natural Sciences of Philadelphia.  23 (1871)  2 - p. 189-193 , 1871
 
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9

Description of Three New Species of Exotic Unionidæ:

Lea, Isaac
Proceedings of the Academy of Natural Sciences of Philadelphia.  23 (1871)  2 - p. 188 ff. , 1871
 
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10

Descriptions of Six New Species of Fresh Water Shells:

Lea, Isaac
Proceedings of the Academy of Natural Sciences of Philadelphia.  21 (1869)  - p. 124-125 , 1869
 
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11

Notes on Microscopic Crystals Included in Some Minerals:

Lea, Isaac
Proceedings of the Academy of Natural Sciences of Philadelphia.  21 (1869)  - p. 4 ff. , 1869
 
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12

Further Notes on Microscopic Crystals in Some of the Gems, ..:

Lea, Isaac
Proceedings of the Academy of Natural Sciences of Philadelphia.  21 (1869)  - p. 119-121 , 1869
 
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13

Notes on Some Singular Forms of Chinese Species of Unio:

Lea, Isaac
Proceedings of the Academy of Natural Sciences of Philadelphia.  20 (1868)  - p. 145-146 , 1868
 
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14

Description of Nine Species of Unionidæ from Lake Nicaragua..:

Lea, Isaac
Proceedings of the Academy of Natural Sciences of Philadelphia.  20 (1868)  - p. 94-96 , 1868
 
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15

Description of Sixteen New Species of the Genus Unio of the..:

Lea, Isaac
Proceedings of the Academy of Natural Sciences of Philadelphia.  20 (1868)  - p. 143-145 , 1868
 
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