The Cambridge natural history, Vol. 03 (of 10)Note 344 — Chapter IX · THE SHELL, ITS FORM, COMPOSITION AND GROWTH—DESIGNATION OF ITS VARIOUS PARTSReading editionProc. Ac. Nat. Sc. Phil., 1892, p. 350.◇Copy noteReturn to CHAPTER IX THE SHELL, ITS FORM, COMPOSITION AND GROWTH—DESIGNATION OF ITS VARIOUS PARTS