472 Miscellaneous Implements Exhibited at Cambridge. 
alternately, the string being continually wound and re-wound, 
with trifling exertion, until the work is done. 
Article 968. Messrs. Henry Pooley & Son , Liverpool. Cattle 
Weighbridge. Price 80?. — This machine will weigh up to fifteen 
head of cattle at one time. The distinguishing feature is an 
immense shadowless dial, which is so designed that its indications 
may be read from any angle. The indicator is without springs 
and is absolutely automatic in action. It is devoid of “ rack-and- 
pinion ” movement, and the vibration of the finger is minimised 
Fig. 3.— Edwards’s Hay an! Straw Bos Baling Press. 
by the employment of an air-valve. The pen and gates are of 
substantial construction. The machine may be fitted with the 
usual steelyard and loose weights, or with Pooley’s patent steel- 
yard, which ooviates the use of weights. It is specially intended 
for auction marts and stockyards. 
Article 99-5. Captain II. S. Tunnard, Rugby. Automatic Fire 
Alarm. Price from 1 21 . — This peculiarly sensitive automatic ther- 
mostat is the salient feature cf a complete and effective system of 
fire alarm. It conveys the alarm on experiencing the slightest 
undue excess of normal temperature, and may be fitted in any 
