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nydus/On Growth and FormPublic
Page 500 of 959
Table of Contents

CHAPTER IX ON CONCRETIONS, SPICULES, AND SPICULAR SKELETONS

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A botanical illustration of a spherical, grid-patterned organism with protruding spines, labeled with lowercase letters.
A geometric sketch from "On Growth and Form" showing a sphere partitioned into polygons, labeled with letters a through e.

Within any polyhedron we may always

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