MANAGEMENT 117 
charged to the hens, because the current will 
naturally ‘be used in the house and in the 
barn. 
There are on the market to-day several 
compact electric-lighting plints which are 
run by a gasoline engine and which not only 
furnish the electric current for lighting, but 
also pump the water which is required for the 
hens and in the dwelling. 
Equipment. When electric lights are 
used, forty- to sixty-watt nitrogen lamps 
should be suspended about six feet from the 
floor, using over each lamp a shade fifteen 
or sixteen inches in diameter and four or 
five inches deep. For each pen twenty-two 
feet square two such lights should be used, 
suspended about equal distances between the 
edge of the dropping boards and the front of 
the building. 
An ordinary alarm clock can be used as a 
means of throwing the electric switch. At- 
tach a spool to the key that winds the alarm. 
Wrap a wire around this spool, the other end 
of this wire being attached to a plain knife 
switch. When the alarm goes off the key 
naturally turns, winds up the wire, and throws 
