BIBLIOGRAPHY.

The subjoined list indicates the chief books and memoirs, in addition to those mentioned in the text and in the Appendix, which may be advantageously consulted by any one who wishes to study more fully the biology of the crayfishes.

INDEX.

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TRANSCRIBER’S NOTE

Original spelling and grammar have been generally retained, with some exceptions noted below.

Ditto marks have been removed. In the List of Woodcuts, the ditto marks have been replaced with em dashes.