Attachments for ordinary cultivators—Some of the effects of the 
chain cultivator may be obtained by attaching chains to ordinary 
cultivators by the use of special attachments. In this way some of 
the effect of the chain drag would be added to the work of the culti- 
vator. Wherever for any reason it is impossible to obtain chain 
drags, it is suggested that the principle be incorporated in some 
simple attachments to cultivators. 
Fic, 8.—Work of the chain cultivator: Same row shown in fig. 7, after cultivator has 
oon of squares brought to middle, crack filled, and dust mulch established. 
The use on ordinary cultivators of an arm or projection that will 
brush or agitate the plants in passing will assist to a certain extent 
in destroying the weevil. The squares will be knocked to the ground 
earlier than they would fall, and this would naturally increase the 
effect of heat. At the same time a very few adult weevils will be 
knocked to the ground, but this has been found to be unimportant. 
In repeated experiments in jarring and beating cotton plants on 
which known numbers of weevils were found it was ascertained that 
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