On Growth and Form
by D'Arcy Thompson
Reading notes from the canto edition (1992) of the 1961 abridged edition. (first edition 1917, extended edition 1942)
“to show that a certain mathematical aspect of morphology… [is] helpful, nay essential, to proper study of Growth and Form” The book dwells in the Miraldi angle, Fibonacci Series, the logarithmic spiral and the Golden Ratio
On Spicules and Spicular Skeletons
ch. 5 page 132 - concerning the deposition of inorganic material in the living body
the inorganic material may be subject to chemical forces (eg crystalisation) on on level and “moulded to the living organism” shaped by cells, tissues and so on.