Cassell's Natural History, Vol. 3 (of 6)Note 51 — Chapter I · INTRODUCTION—THE SQUIRREL, MARMOT, ANOMALURE, HAPLODONT, AND BEAVER FAMILIES.Reading editionSee Note on p. 83.◇Copy noteReturn to CHAPTER I. INTRODUCTION—THE SQUIRREL, MARMOT, ANOMALURE, HAPLODONT, AND BEAVER FAMILIES.