INCUBATOR WICKS. 
Specially treated by Stemp’s Process. 
Price: fin., 4d. each; fin., 5d. each; gin., 6d. each; post free. E. 
HUMIDITY GAUGES. 
Few Poultry Breeders appreciate 
the important part played by the 
moisture conditions in an Incubator. 
Large numbers of chicks die in shell 
every year, due almost entirely to 
the lack of a correct percentage of 
moisture during the Incubation 
period. 
Price: 3/- each. 
Postage 6d. 
INCUBATOR 
THERMOMETER. 
No. F132. 
Points to be observed when 
using the Humidity Gauge. 
I.—The Tank must be kept filled 
with clean water (preferably rain¬ 
water), and the cotton wick which 
conveys the water to the bulb must 
be kept clean, otherwise the moisture 
will not syphon to the bulb. Should 
the w r ick become clogged, it should 
LOW 103 HIGH 
PERCENTAGE OF HUMIDITY AT 103°f 
Corrections Subtract 2atI04°f 
Add 2at 102° o 0 c 4atio5°f 
No. FI. Price: 10/6, postage 6d. 
^ INCUBATOR HUMIDITY GAUGE 
PERCENTAGE of HUMIDITYat I03°F 
Corrections Subtract 2 at 104°F 
Add2at|02°F o o o o 4atio5 c f 
be replaced by a new one, supplied 
with each instrument. 
II.—The instrument should be 
placed in the egg trays, so that it 
takes the place of one of the eggs 
and records the actual conditions 
which surround the eggs. 
No. F2. Price: 7/6, postage 6d. 
JUDGING STICKS. 
Telescopic Principle. No. E4. 
For Poultry (Four Joints). 
Price: 7/6 posted. 
Smaller: For Pigeons, etc., 7/6. 
FIVE PER CENT. CAN BE DEDUCTED IF CASH IS SENT WITH ORDER. 
Page one hundred and thirty-one. 
