affecting the Turnips, Corn-cr(>i,K. f\-r. 
2o3 
knowledge of the species difficult to acquire, and this is not di- 
minished by the frequent moullings; it is therefore possible that 
some of the smaller species may be only the younger state of the 
larger ones, yet I cannot think but that ail I have described are 
quite distinct. 
The way in which these animals live amongst the roots of 
plants, renders it extremely difficult to destroy them, without 
sacrificing the infected crop ; and their horny coats, which resist 
the point of a pin, being impervious to water^ nothing, I should 
conceive, could be of much service but very great heat and hand- 
picking; unless, indeed, any dressing could be discovered which is 
disagreeable to them : whether lime would answer the purpose I 
have no means of ascertaining, but I am inclined to think it might, 
for I believe that they cannot endure heat, and I am certain they 
are not able to exist without humidity, for if confined in a box de- 
prived of moist earth or damp moss they die in a few hours. The 
iollowing remedies have been suggested by various writers. 
Watering the land repeatedly with lime-water is believed to de- 
stroy the Millipedes, and soot spread over the surface w ill drive 
them away. Sprinkling nitrate of soda round the plants, and 
afterwards watering them, would, it is presumed, prove the best 
remed\-, or watering the land with a solution of the nitrate would 
be equally beneficial, and more appliL-able to extensive crops; but 
this operation must be performed in a dull damp day, or in the 
morning or evening when the sun does not shine upon the field, 
otherwise it might scorch the leaves. Traps should also be re- 
sorted to, especially in gardens, where if loosely made baskets, 
such as strawberry pottles, were filled with damp moss, especially 
during dry weather, and sunk in the earth, the Juli would, in all 
probability, resort to them, and the baskets might easily be drawn 
out by the handles every morning, in order to examine their con- 
tents and kill the animals. In hand-picking, all large stones and 
clods should be turned over, as the Millipedes secrete themselves 
in such humid situations, and where these animals are abundant, 
large numbers, I expect, might be caught by strewing old cab- 
bage-leaves over a field, in the same way as when slugs are trou- 
blesome, and employing children to turn them over and collect the 
Millipedes, &c. beneath. 
Summary of the foregoing Heport. 
Descriptions of eight Click-beetles which inhabit corn-fields 
namely, 
Elater holosericeiis, the larva or Wireworm of which is unknown. 
Elater murinus : it has not been ascertained whether the Wire- 
worm of this beetle is injurious to the crops. 
Elater ftih'ipes, its Wireworm lives in decaying trees. 
