74 Scientific Intelligence. 
which is added the Principles of Taxonomy and Phytography, and 
a Glossary of Botanical Terms; by Asa Gray, D., ete., Fisher 
was adopted as the only safe one on which to build, and upon this 
a symmetrical superstructure was erected. It was no ordinary 
sagacity which led a young botanist, without experience in teaching, 
to select a method which has needed no essential change for forty 
years, and which is to-day generally accepted as best adapted to ele- 
mentary and advanced instruction. The “'Text-book,” which was 
developed from the earlier “Elements of Botany,” has passed 
through several editions, the last of which, published in 1852, is 
widely known under the title, “ Structural pats Systematic Botany.” 
A still further development of the plan selected at the outset, neces- 
sitated a division into separate volumes, and it is of this that men- 
tion must now be made. The present edition of the Text-book 
The sections devoted to the flower have undergone very great 
modifications, The deviations from the type-flower are discussed 
rp 
s been revised throughout and 
instructive to observe how little 
