November, 1916 
THE GARDEN :M A G A Z I X E 
145 
It converts the year-around supply of fresh vegetables for the average home from a problem into 
an economical certainty. That is the great mission of Duo-Glazed Sash, which is revolution- 
izing under-glass gardening. Economy, to be effective, must be in evidence all ways and all 
I the time. Duo-Glazed Sash stands for loo point economy. Its first cost is low. Because 
^ it is built right, it costs little to maintain it. Duo-Glazed Sash-covered gardens are 
^ operated at least cost because of the scientific principle underlying their construction. # 
^ So much for economy in connection with your investment. As to the earning power ^ 
^ and vegetable-money saving side of Duo-Glazed Sash, please refer again to our ^ 
^ advertisement on page 105 of the October Garden Magazine. 
You can easily grow enough vegetables of the kinds you like and make 
any Duo-Glazed equipment pay for itself in a short time. Growing 
vegetables under glass is not difficult. You simply create heat by either 
fresh manure (in hotbeds) or with a heater, provide soil, sow seeds and 
keep out the cold. Here’s the point where Duo-Glazed Sash takes the 
gamble out of under-glass gardening. It effectively keeps out the cold. 
The double layers of glass completely insulate. No covering with mats, 
no watching of temperature worries owners of Duo-Glazed gardens. If 
the saving of time, the reducing of work and eliminating of worry 
^ count for something with you in your garden endeavors, investigate 
% Duo-Glazed Sash. 
Showing air chamber 6e- 
^ tween two layers of glass. 
^ This gives your plants 
^ blanket protection — no 
extra covering is neces* 
sary at above zero temp^ 
erature. 
A Duo Glazed hotbed un- 
der winter conditions. In- 
cludes two Duo Glazed 
sash, 3 ft. X 6 ft., Topframe 
€ ft. 2\^ inches x 6 ft. and 
Pit frame of same size. 
Complete outfit, with glass 
in boxes, sash and top- 
frame creosoted, $17, $S. 
With This “Little Gem 
you can lengthen the fresh vegetable season by four months, 
Started December First, it will yield quick-growing crops, like 
lettuce, radishes, etc., beginning at New Year’s day. By 
March First your space might be divided between eatable 
crops and plants to be set out into your garden in the 
I Spring. Started in this manner, cabbage, tomatoes, 
^ onions, celery, etc., will be way ahead of the crops ; . 
started outdoors. It matters little in this instance, / y 
whether you have a Duo-Glazed Greenhouse, Hot- 
bed or Cold Frame. The result will invariably Tf 
be sturdier plants of quicker maturity. /i ? 
Gem hot-water heated gardenframe. Only 
$49.50 complete. Easily managed. Of es- 
pecial interest to women. Can be made to 
pay its cost in one season. Gives you 
greenhouse service at little more than hot- 
bed expense. 
The ** National** Sectional greenhouse, 
madz in 13, 15 and 20 foot widths and 
of any length from 15 ft. 8 inches up, 
in units of about 4 feet. There is also 
the **Gem,** a house 10 feet in width. 
Prices range from $170 up. 
Send for Catalogue 
It fully describes and pictures the various 
Greenhouses, Garden Frames and Hot- 
bed Sash of our manufacture. In 
language that is concise and easy 
to understand, it presents every 
necessarj’ detail regarding the 
Duo-Glazed line. Address 
Callahan 
Duo-Glazed 
Sash Co. 
1347 Wyandot 
Street ^ 
Dayton k 
A Ohio ^ 
