The Cambridge natural history, Vol. 03 (of 10)Note 349 — Chapter IX · THE SHELL, ITS FORM, COMPOSITION AND GROWTH—DESIGNATION OF ITS VARIOUS PARTSReading editionJ. E. Gray, Phil. Trans. 1833, p. 812.◇Copy noteReturn to CHAPTER IX THE SHELL, ITS FORM, COMPOSITION AND GROWTH—DESIGNATION OF ITS VARIOUS PARTS