U&ndnll {/Whitney 
'Purtlunzl J^iuine. 
Queen Incubators 
The “Queen” is an Incubator Built Upon Principle and 
Common Sense 
Egg Turning Trays 
These can be furnished if desired. The 30-in. tray, price $4.00, fits Nos. 4, 5, 25 and 30. The 40-in. 
tray, price $6.00, fits No. 40. 
Self-Supporting Egg Trays 
It is expensive to have a tray of eggs slip out || a Queen. It has self-supporting egg trays. Most 
and drop to the floor. This cannot happen with || of the cheap machines have no protection. 
Proper Insulation 
The Queen is doubly insulated. First, we use 
double walls of California redwood, forming a 
dead air space. Second, corrugated strawboard 
is used between the wooden walls. Proper in¬ 
sulation adds considerable expense to the man¬ 
ufacturing cost. However, It is an absolute re¬ 
quirement of a good incubator. 
Queen Hot Water Heating 
The Queen system of hot water heating pre¬ 
vents the drying out tendencies found in hot 
air incubators and provides a soft, uniform heat 
over every part of the egg chamber—a heat that 
Is most natural for the hatching eggs. When it 
becomes necessary for you to remove the lamp, 
the heated water circulating through the radiator 
maintains an even heat within the egg chamber 
without the slightest variation, while, should the 
lamp be forgotten, the heat stored in the water 
will keep the eggs warm for many hours. Hot 
water is admittedly the best heat for incubators. 
The radiator and boiler of the Queen heating 
system is made of copper (not copperized tin) 
that has been rolled into sheets without heating, 
which gives added life, strength and ability to 
stand more wear and tear than the ordinary sheet 
copper, and is placed close to the inner top of 
the incubator. This form of placing allows the 
heat to reflect from the floor of the egg chamber 
and to more evenly affect the germ which always 
rises to the upper surface of the yolk. 
Why We Use Redwood 
California redwood is conceded by all to be 
the best wood for incubator construction, as it 
will not warp, split, nor absorb moistures or 
odors during use. It is a wood that insects 
seldom attack, because of an acid element the 
lumber contains, and, being free from pitch, 
offers strong resistance to fire. 
Special Heat Regulation 
This is a vital factor in Incubation, for an 
incubator must not only be supplied with heat, 
but it must have exactly the required amount at 
all stages of the hatching period. It other words, 
the source of heat must be self-regulating and 
sure. 
The manufacturers of the Queen have designed 
and patented a regulator especially for the 
Queen, with which they guarantee a regulation to 
within a small fraction of a degree. 
Style K 
This line was gotten out to supply a demand for a moderate priced 
machine for those who do not feel they can afford a Standard Queen 
and is superior to any machine of its class. It is constructed of red¬ 
wood, has copper heating system, regular Queen regulator, but having 
no air space between the double walls is more easily affected by ex¬ 
tremes of temperature than the Standard Queen. 
No. 22. 220 eggs . 
78 
$29.40 
