On Growth and Form, Volume 2

Ammonites animal antheridium arrangement axis beautiful become bivalve body bone bourrelet bubbles carapace cell-wall cells centre chambers circular co-equal angles cone configuration constant angle coordinates corners corresponding curvature curve cylindrical deformation diagram direction edges equal equiangular spiral figure films flattened fluid Foraminifera forces four gastropods geodesic geometrical growing growth hexagonal horn illustrated instance latter layer leaf less lines logarithmic spiral magnitude mathematical mechanical meet nautiloid Nautilus operculum organism outer oviduct partition partition-wall pattern phenomena phenomenon phyllotaxis physical plane plate polar furrow portion precisely pressure problem protoplasm Pteropod quadrant radial Radiolaria radius ratio recognise rhombic dodecahedron right angles septa shape shell shew shewn side similar simple skeleton skull solid solid of revolution species sphere spherical spicules structure successive surface surface-tension symmetry tend tension tetrahedron tissue transverse triangle tube Turritella various vertebrae vertical walls whole whorls