416 Seventific Intelligence. 
the indefatigable author will ere long complete this laborious and 
noble work. These fifteen or twenty years will then be distin- 
guished by the production of the Flora Australiensis and the Flora 
Orientalis. Would that the Flora of North America were added 
to the number. A. G. 
4, Sulla Diffusione dei Liquide Colorati nei Fiori ; by Pro- 
ing cuttings : 
coloring fluids, and concludes by saying that aniline-green is 
especially favorable for staining not only the vessels but the 
8 
W. G. F. 
5. Neue Beobachtungen tiber Zellbildung und Zelltheilung; by 
Professor Ep. SrraspurcEr.—Nos. 17 and 18 of the Botanische 
Zeitung contain an important article b Strasburger. It ha 
generally been admitted by botanists, including Strasburger him- 
: i b 
antipodes do not arise by a free-cell furmation 8 ase of 
the two last named structures, the endosperm-cells are formed by 
a division of the nucleus of the embryo-sack minimus 
accumulations in the cells. He does not deny, however, that free 
nuclei may be formed in some instances, but only that it does not 
accompany cell-forma: pirogyra, for instance, the spore 
h first no nucleus but one is formed at th of germina- 
tion. ‘The same is true of the s arm-spores of Tr 
Girectorship of the Arnold Arboretum at the Bussey Institution. 
He now devotes himself entirely to the arboretum, resigning the 
