168 THE JOURNAL OF BOTANY 
following papers: ‘“ Nature et signification des alcaloides végétaux,”’ 
by G. Clautriau, who also contributes an essay on “ La digestion 
pe les urnes de Nepenthes”’; *‘ Sur les alcaloides et les glycosides 
dans les Rénonculacées,” by E. Vanderlinden ; ; “Le lancement des 
trichocystes chez Paramecium Aurelia” and ‘Sur le protoplasme 
Hed Schizophytes,”” by J. Massart; ‘‘ Influence de la température 
ur la perméabilité du protoplasme,” by F. Van Rysselberghe ; 
s i Bar le myriotomie comme unité dans les mesures osmotiques,” and 
on Spirillum Colossus, by L. Errera ; andsome others. A provisional 
summary of the contents of vols. i.iv. accompanies the volume. 
In connection with the jubilee of the Owens College, Mancheakons 
last month, the following botanists received the degree o 
Prof. Chodat, Prof. Howes, and Prof. Marshall Ward. The deqtee 
of M.Sc. was ~ eal upon Mr. Charles Bailey. 
Mr. D. McAtprng, the hide Vegetable greg for 
Victoria, has recen tly published a pamphlet for the benefit o 
market-gardeners, dealing with the fungi that — commonly 
attack cabbages and cauliflowers. The diseases are described and 
illustrated by some good coloured drawings and by microphoto- 
graphs, and remedies are suggested in each case for me pennioeiees 
or extermination of the pest. ‘*Black leg,” caused by 
Brassica, is the most destructive fungus they have to contend with, 
It was first met with in 1897, and has already caused very serious 
loss to the growers. Cauliflowers suffer more airarely than cabbages 
from this disease. Plasmodiophora Brassica, popularly called club- 
root, and well known in Europe, has also invaded the Colonies, 
and in some seasons has been very prevalent. Cystopus candidus, 
causing “white rust,’ attacks the leaves of seedlings, and does 
much damage to the plants. Dark spots on the leaves are due to 
Spherella Brassica. This fungus fortunately attacks only the older 
leaves, and is thus of less harmful importance, though its presence 
is very undesirable. Per onospora parasitica forms a white bloom 
on the leaves and inflorescence. e mycelium cornice the tissue 
of the host, and causes rotting of the ears pei It has been 
— “Black r ot e by the Victorian market ardeners.—A. L. 8. 
A few years ago the University esneege d on Mr. Druce the hon. 
degree of Master of Arts in recognition of his services to the study 
of botany; he was President of oe British Pharmac eutical Con- 
ference at its were in Dublin last year; he is Curator of the 
Fielding Herbari and author of the Flora “of Oxfordshire 
Berkshire, and Nurdempionaitte, ea is believed to be the first 
occasion an Oxford tradesman in business (Mr. Druce is a chemis 
in High Street) has been admitted a resi of a College.” 
Mr. E. C. Horrent has been appointed Staff Biologist to the 
Essex County Ooancil: Lig address is now—Elmhurst, New London 
Road, Chelmsford, Ess 
Mr. W. H. Pzarson ope us to state that his address is now 
Park Crescent, Victoria Park, Manchester. 
