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WILLIAM. HEALEY DALL. On the hinge of Pelecypods and its development, with an attempt toward a better subdivision of the group.

Amer. Jour. Sci., XXXVIII, December, 1889, pp. 445-462.

A paper discussing the Dynamic genesis of hinge characters and proposing a new classification of the bivalve mollusks.

WILLIAM HEALEY DALL. Bering.

The Nation, XLIX, No.1275, Dec. 5,1889,p.454.

A Review of Lauridsen's L[[strikethrough]]e[[/strikethrough]]ife of Bering, translated by J. E. Olson.

WILLIAM HEALEY DALL. Note on Crepidula glauca Say.

The Nautilus, III, No.9, January, 1890,pp.98-99

Shows that the shells commonly referred to C. glauca Say are either the depressed normal form of C. convexa Say or young specimens of C. fornicata Lam, and that the name glauca had [[strikethrough]]would[[/strikethrough]] better be ignored in the future.

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