Researches on the Visual Organs of the Trilobites

Note 19 — Blind Trilobites.

Reading edition

Additamenta quædam ad petrificata telluris Suecana, in Acta Upsaliensia, vol VIII, 1821, p. 294.

[20] Vet.-Akad. Handl. 1826 p. 126.

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