Note 485 — Chapter IX · ON CONCRETIONS, SPICULES, AND SPICULAR SKELETONS (continued 2)
Reading edition
Cf. Faraday’s beautiful experiments, On the Moving Groups of Particles found on Vibrating Elastic Surfaces, etc., Phil. Trans. 1831, p. 299; Researches in Chem. and Phys. 1859, pp. 314–358.