IT is a difficult task, nowadays, to write a text-book of botany, because the subject has become so large as to render it impossible to treat even the more important sections of it within reasonable ...

THIS publication is the outcome of experience gained by the author in the organisation and supervision of large classes of students. The subject matter and material, however, do not differ from that ...

Gardeners who have resolved this year to delve deeper into how horticulturists and botanists identify and group plants may be interested in a book that is something of a tutorial in classification ...