The Cambridge natural history, Vol. 03 (of 10)Note 90 — Chapter II · LAND AND FRESH-WATER MOLLUSCA, THEIR HABITS AND GENERAL ECONOMYReading editionNaturalist, 1891, p. 75 f.; Conchologist, ii. 1892, p. 29.◇Copy noteReturn to CHAPTER II LAND AND FRESH-WATER MOLLUSCA, THEIR HABITS AND GENERAL ECONOMY