46 
UNION SEED & FUEL CO., BOISE, IDAHO 
DEPENDABLE POULTRY SUPPLIES 
OIL AND ELECTRIC INCUBATORS 
Standard 
of the 
World 
Wonderful for 
both Chickens 
and Turkeys 
WHY YOU SHOULD USE PETALUMA ELECTRIC INCUBATORS 
THE FAMOUS PETALUMA 
Because they will make bigger hatches of larger 
and better chicks and poults than most incubators in 
the world. 
They require absolutely no attention, except to 
turn the eggs. 
There is no chance of fire or odor from coal oil— 
gas or coal. 
The regulation of Petaluma Electrics is positive 
and accurate. The temperature never varies. 
Pure, warm fresh vitalized air surrounds the 
eggs at all times, making healthier and stronger 
chicks. 
They are the simplest machines in the world 
to run. There is only one adjustment. No lamps to 
fill, clean or trim. Labor reduced to the minimum. 
All the old drudgery is done away with by these 
wonderful machines. 
They can be attached to any ordinary electric 
light socket, can be run in any room in the house 
—no muss or odors. 
They are the finished product of nearly twenty- 
five years of careful experimenting and tests. You 
get the most wonderful hatches the poultry world 
has ever known. 
Many reports we have received from users are 
so remarkable they must be read to be appreciated. 
Ask us for testimonials of local people—some of 
whom have used them here on turkeys for ten years. 
These machines are equipped with standard trays 
or with roller trays for rapid turning of eggs, by 
which all eggs in any size machine are turned in¬ 
stantly. The lever is on the bottom of the machine 
and does not show in the cut. 
Capacity of machines is based on the number of 
eggs in a standard tray. The roller trays reduce the 
capacity nearly one-fifth, but saves valuable time in a 
hatchery, at a little higher price than standard trays. 
The Petaluma Company were the first to intro¬ 
duce a real practical electrical incubator. One that 
does not require an electrician to operate it. One 
that is simple enough for any person to understand. 
One that is unique in construction, safe, reliable, 
and using but a small amount of current. One that 
controls the heat perfectly and will not get out of 
order. One of very few parts and very simple me¬ 
chanism, and will hatch anything that can be hatched. 
If you owned one you would not take five times 
its cost if you knew you could not obtain another 
like it. 
The Petaluma Company hatched chicks at the 
California State Fair in 1906, in electric incubators 
and have been operating them ever since, improving 
them from time to time so as to minimize the con¬ 
sumption of electric current, and therefore reduce 
the cost of operating them, our desire being to 
make a machine so perfect and so simple that no 
trouble could possibly arise. Patents which are very 
broad and specific, cover all the good things in 
electric incubators. 
Many of the largest and best hatcheries in the 
world have adopted our machines also we have con¬ 
verted the machines they have been using, into elec¬ 
tric incubators, enabling them to hatch bigger, better 
and stronger chicks than they have ever been able 
to do previously. Early in the season of 1919-1920, 
they converted in a few weeks sufficient machines 
in the big hatcheries of Petaluma and elsewhere, to 
equal 1500 504-egg machines, and that good work has 
been going ever since. This would not have been 
possible, except that the hatcheryman recognized that 
nothing in the world equaled Petaluma Electrics. If 
these men of long years of experience in hatching 
are adopting ours it ought to be safe for you. No 
hatcheryman will spend several thousands dollars in 
making the change unless he is satisfied he is getting 
something superior to anything he has previously 
had. Illustrated circulars mailed upon request. 
160-egg, $34.00; 320-egg, $44.00; 640-egg, $68.00; 640-egg, Double Compartment, $75.00 
LIBERAL DISCOUNT AND FREIGHT PREPAID WHEN CASH ACCOMPANIES ORDER 
