The Cambridge natural history, Vol. 03 (of 10)Note 352 — Chapter IX · THE SHELL, ITS FORM, COMPOSITION AND GROWTH—DESIGNATION OF ITS VARIOUS PARTSReading editionJ. Lewis, Proc. Bost. Soc. vi. p. 149.◇Copy noteReturn to CHAPTER IX THE SHELL, ITS FORM, COMPOSITION AND GROWTH—DESIGNATION OF ITS VARIOUS PARTS