INDEX KEWENSIS.” 811 
‘**T have only to add that, at his request, I undertook to direct 
and supervise such a work; and that it is being carried out at the 
Hevbativies of the oo Gastlati: se with the aid of the staff of 
that establishment.— . Hooxe 
With this brief prefatory note is launched into the a 
world one of the most important works of reference which has ever 
appeared. What Dr. Murray’s vast Dictionary, which is issui pe at 
too long intervals from the same press, will do for the Hnglish 
language, Mr. B. D. Jackson has done for the spikceenia botanist : 
and his work will at once take its position as an indispensable 
factor in every botanical librar 
The readers of this Journal have been kept au courant with the 
x gtopt of ~ work, and Pot J a De explained at some length* 
the lin which it was to be carried out. It is therefore 
for the piceoecs of genera 
e last edition of Pritzel’s Nomenclator appeared in 1841, and 
is, brought up to date by the inclusion of the 
pidilienici of —s name cite 
This statement makes manifest, without sag 4 further demon- 
stration, ‘ais magnitude of the task which ackson has under- 
. Itis to be regretted that Sir Joseph Hooker, in the preface 
which has been quoted at length, has not made it more clear that 
the work is in the main Mr. Jackson’s cid 0 and that it has been 
has distinguished himself in every branch of botanical science, 
has never a ar ta tradstion, Doubtless, with the cou- 
cluding part of the ackson will give an account of its 
history, and ker pinotlatss the a <M help which he has 
received from the Botanical Department of the British Museum, 
and oa 
* Journ, Bot, 1887, 67, 150. 
