THE first edition of Part I. of Profs. Bower and Vines's “Practical Botany” was published in 1885 (see NATURE, vol. xxxii. p. 73); and during the three, years that have elapsed the book has become ...

ABOUT twelve or fourteen years ago there occurred in England two events which have had so marked an influence on the development of scientific botany in this country that they are likely never to be ...