Methods of study in natural history
1863
viii, 319 p. : 'The series of papers collected in this volume may be considered as a complement or commentary to my [the author's] "Essay on classification".' - Preface
1863
viii, 319 p. : 'The series of papers collected in this volume may be considered as a complement or commentary to my [the author's] "Essay on classification".' - Preface