Report on Miscellaneous Implements at Newcastle. 203 
adapted to stopping gi'ain is found, when tlie flat plate is secured 
in place by means of its set screws. 
Messrs. W. J. and G. T. Burgess, of Victoria Works, Brent- 
wood, Essex, showed, as a New Implement, a Mower and Hay- 
Tedder combined (Art. 225). The space between the wheels 
of the Mowing-machine is occupied by a narrow Haymaker, 
which, while the grass-mower is cutting one swathe, turns that 
cut on the previous round. The drawing (fig. 5) illustrates the 
action of the machine, and the following advantages are claimed 
for the combination. 
The hay is got up in better condition, particularly in showery weather. 
The thick end of the swathe, as left by the track-hoard, is broken up and the 
whole spread loosely over the ground in the best possible condition for air to 
circulate through it. The use of a separate haymaker is dispensed with, 
Fig. 5. — Burgess's Combined Mower and Hay Tedder. 
and the expense of an extra horse and driver obviated. The wheels do not 
run on the crop at any time. The wheels of an ordinary haymaker run over 
the hay, both before and after tedding. The tedding apparatus can be put 
out of gear when not required, as when the machine is cutting clover, &c. 
At such times the forks or tines are turned back entirely out of the way of 
the crop. Very little power is consumed in driving the tedding apparatus. 
Charles Hearson & Co., of 235 Regent Street, London, 
showed a simple Thermostat, applied to an Incubator (Art. 444), 
but useful in any situation where it is desired to maintain a 
perfectly even temperature for an indefinite time (see fig. 6). 
Hearson's thermostat is, in effect, a tiny steam boiler about 
the size of a postage stamp and thickness of a penny. It is 
made of very thin brass plate, and, having first been filled with 
ether, is hermetically sealed. The boiling-point of ether is 94°, 
