207 
A second plot of Poa annua, grown in infected soil, but not 
treated, was killed by the parasite. 
The treatment should follow a rainfall, or a thorough soaking of 
the ground with water, for the reason already given. It is import- 
ant that the treatment should be repeated two or three times, 
according to circumstances, at intervals of about ten days as free ' 
sh — are Ea 135s and these are liberated at intervals. 
doubtful as to whether any known method of seed 
sterilléation Men sniote of value, as the thick-walled resting-spores 
n the tissues of the seed, whereas the spores of 
< smut,’ °s ban, ” &c, where proper treatment proves effective, are 
not so thick-walled, and lie free on the surface of the seed. 
Now that the disease is undoubtedly present, and- perhaps toa 
greater extent than is realised, the most certain method for pre- 
venting its wholesale distribution turns on the selection of seed 
from districts free from the disease, and as the symptoms are so 
evident in the field and so readily dorechotited, or otherwise, in the 
laboratory, this should prove a comparatively easy matter. 
This niin has probably been introduced from the Continent. 
It is not known as an indigenous British fungus, and was first found 
by De Bary in Germany. 
XXXV.—CEDAR WOODS. 
W. DaLLiMorE. 
The frequency with which the word cedar is used in connection 
with various kinds of timbers suggested the compilation of a list 
of the trees to which the name is gis and in the sina: notes 
references are given to works in which the name is used, and in each 
case the information has been extracted as far as possible from the 
books where the names occur 
There appears to be little doubt that the name was originally 
' used in connection with the cedar of Lebanon, and that, by reason 
of its association with Biblical history, is the most widely own 
cedar of the api! day although its wood is one of the least 
important of the m which now bear the name of cedar. The 
chief reason for the advpiton of the name for many kinds of woods 
appears to be that they possess an odour very like that of the cedar 
ebanon, but in other cases a real or fancied resemblance 
between the leaves or the bark of two trees has been found a 
sufficient reason for the name. Then again the name appears to 
have been given to some woods in order to try and create a market 
for the timber, whilst in other instances there does not appear to be 
any good explanation for the use of the word. From these several 
reasons, the name of cedar has been brought into use for trees And 
woods which are totally distinct in habit and structure, belonging 
to widely different families and coming from many different parts 
of the world. In the following notes the various trees to which the 
name of cedar is applied are arranged in their respective Natural 
Orders. 
