848 Dp. JoSEPH.GOTTLIEB KOLREUTER’S VORLAUFIGE NACHRICHT. 
er Vi. 
whole of the book. It is a list of the most ornamental orchids, 
with such descriptions of the genera and species, and other in- 
formation, as would interest or help those for whom the book is 
k h 
present, and fear that some purchasers will feel similarly dis- 
appointed. On the whole, however, M. Bois has produced a useful 
little book, which the publishers have sent out in a handy form. 
A. B. Renpusz. 
D. Joseph Gottlieb Kélreuter’s Vorliiufige Nachricht von einigen das 
Geschlecht der Pflanzen betreffenden Versuchen u. Beobachtungen, 
nebst Forsetzungen 1, 2, & 8. (1761-1766.) Herausg. v. 
W. Prerrer. Leipzig: W. Engelmann. 1893. 8vo, pp. 266. 
Price 4 Marks. 
Tuts neat little volume appears as No. 41 of a series entitled 
“ Die Klassiker der exakten Wissenschaften,” edited by W. Ostwald, 
and published by Wilhelm Engelmann. Important and epoch-making 
works of men like Galileo, Kant, Helmholtz, Berzelius, Lavoisier, 
we can find only two others of botanical int 3 
‘‘ Chemical Investigations on Plant-life,” in es ete an gees 
have been a worthy recognition of its centenary to have reproduced 
Sprengel’s wonderful book, a work of more general interest and 
more easily to be comprehended than, for instance, a treatise on 
the symmetrical polyhedron, or investigations on the radicals of 
benzoic acid. 
Kolreuter was born in 1788, in the Swabian town of Sul 
years later he produced his first plant-hybrid 
an honour claimed by the authors of the Bio, } 
Saag graphical Index for 
Fairchild (1719) ; at any rate, Kolreuter’s work on hybridisation 
