The Cambridge natural history, Vol. 03 (of 10)Note 68 — Chapter II · LAND AND FRESH-WATER MOLLUSCA, THEIR HABITS AND GENERAL ECONOMYReading editionH. Ullyett, Science Gossip, xxii. (1886), p. 214.◇Copy noteReturn to CHAPTER II LAND AND FRESH-WATER MOLLUSCA, THEIR HABITS AND GENERAL ECONOMY