542 Miscellaneous Iniplemenfs Exhibited at Warwicli. 
a rather sharp pitch rendered slippery by the rain of the pre-* 
vious night, and through the usual-sized farm gate. The driver 
managed it entirely himself, but there was an attendant who 
followed, and who had once or twice to put down one or other 
of the forks, by pressing them with his foot, when from turning 
or otherwise they had hinged up. The depth worked can be 
varied by using tines of different lengths ; those on the Digger 
were for working six inches deep. 
The field was a bare clover root, hard and dry, with a fairly 
strong loamy soil and gravelly subsoil, and was well suited 
for testing the work of the Digger. The three sets of 
forks together take 8 ft. 9 in. wide, just clearing the track 
of the travelling wheels. They are put to work at once 
without any delay, by simply hinging them down, and 
throwing the digging shaft into gear. A centre roller, capable 
of being raised or lowered, is fitted undenieath between 
the travelling wheels so as the more ev'enly to distribute the 
weight of the machine over the land, and on light land to bring 
it down level before the forks enter the soil. The crank works 
at the top of the fork handles, and in an opposite direction to 
that which the rocking lever takes at the moment when the sod 
is broken off, thereby better ensuring the effectual moving of 
the sods. The driver preferring (as being more convenient) to 
commence work at some distance from the side fence of the 
field, and to work towards it, he left the usual headland along 
the top of the field, and worked down the field. Tlie first 
digging moved all the soil to an average depth of six inches, 
leaving the land worked by the centre fork in a rough, broken 
state, in fact, in a very suitable state for fallowing. The two 
side forks did not turn all the sods over : sometimes they missed, 
and the sods fell back into position again, top uppermost, like 
so many huge bricks. The cause of this appeared to be that 
they worked behind the driving wheels of the engine, which 
had compressed the land more than the centre roller, which 
did not press the hard and dry surface of the land to any appre- 
ciable extent. The land dug by the centre fork was left higher 
than the other part, probably also from the same cause. 
I consider that the first digging left the land in a good state 
for fallowing, with the exception of the misses I have named with 
the side forks. The second digging, across the “ dug ” portion, 
made much better work, but even here the centre fork was the 
most effective, as it seemed to turn the soil over better, and leave 
it lighter and rougher. The land was, however, left in a very 
satisfactory state, and would easily afterwards be worked by 
horses. The pressure of the travelling wheels (over about two- 
