THE advocates of an exclusively experimental course of study in the natural sciences are confronted with the difficulty of time limitations, so that in practice it becomes necessary to strike a ...

(1) IN the “Principles of Botany” the authors have introduced an innovation that offers definite advantages, and promises to be as suitable for practical work as for lecturing. The book is apportioned ...

Disclaimer: Reference to products is not intended to be an endorsement to the exclusion of others which may have similar uses. Any person using products listed in these articles assumes full ...