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On Growth and Form

Note 454 — Chapter IX · ON CONCRETIONS, SPICULES, AND SPICULAR SKELETONS

Reading edition

Cf. Dreyer, Fr., Die Principien der Gerüstbildung bei Rhizopoden, Spongien und Echinodermen, Jen. Zeitschr. XXVI, pp. 204–468, 1892.

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