A monograph of the British nudibranchiate mollusca / By Joshua Alder and Albany Hancock ... with a supplement by Sir Charles Eliot.

A catalogue of the zoophytes of Northumberland and Durham / by Joshua Alder.

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Alder, Joshua, 1792-1867.

Works from the collections

A monograph of the British nudibranchiate mollusca / By Joshua Alder and Albany Hancock ... with a supplement by Sir Charles Eliot.

A catalogue of the zoophytes of Northumberland and Durham / by Joshua Alder.