The Cambridge natural history, Vol. 03 (of 10)Note 88 — Chapter II · LAND AND FRESH-WATER MOLLUSCA, THEIR HABITS AND GENERAL ECONOMYReading editionMalak. Blätt. (2) iv. pp. 43 and 221.◇Copy noteReturn to CHAPTER II LAND AND FRESH-WATER MOLLUSCA, THEIR HABITS AND GENERAL ECONOMY