Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

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Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

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Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

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Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

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Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

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Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

Ser.2, v.16

Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

Ser.2, v.6

Report of the United States Geological Survey of the territories. F.V. Hayden, United States geologist in charge ... [Final reports or monographs. vol. I]-III, V-XIII.

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Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

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Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

Ser.2, v.1

Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

Ser.2, v.5

Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

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Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

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Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

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Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

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