HOUSE AND GARDEN 
334 
November, 
I 9 D 
Kelsey Heat 
And Constant Heat Ventilation In One 
S IMPLY because of lack of giving the matter 
a moment’s thought, most people seem to 
feel that they need less fresh air in the 
winter than summer. 
Go into nine-tenths of the hot water or steam- 
heated homes and you find many of them 
seemingly overheated , when in fact they are in 
most cases under ventilated. 
When it is hot in the 
summer, you let all the 
outdoors in you can, but 
in the winter you keep it 
out all you can. 
No one really disputes 
the necessity of fresh air 
but most of us dread to 
let enough of it in our 
houses in the winter, 
because we are afraid of 
draughts and colds and 
the burning of too much 
coal. 
Now suppose it were 
possible to take the fresh 
air from outside, heat it 
to a moderate agreeable 
temperature, mix it with 
just enough moisture and 
then have it coming out 
into your rooms in large 
quantities so that you 
had plenty of heat with¬ 
out that heaviness in the 
air; and ample ventila¬ 
tion without draughts. 
If this could be accom¬ 
plished by burning 
from a third to a half 
less coal than with steam or hot water, and 
without the use of unsightly radiators in the 
rooms, it would seem that such a heat would 
be the ideal heat. 
Just such a heat is the Kelsey heat that is 
produced by the Kelsey Warm Air Generator. 
To the casual observer the Generator from the 
outside may look quite like the ordinary furnace, 
but its interior construc¬ 
tion is radically different 
and the results can in no 
way be compared. 
No gas or dust comes 
up the Kelsey wall or 
floor registers—nothing 
but pure air heated to an 
agreeable healthy tem¬ 
perature. 
No matter what way 
or how hard the wind 
blows, the Kelsey de¬ 
livers the heat to any 
room in your house. 
This is accomplished 
by what we call a “ Posi¬ 
tive Cap Attachment” 
which leads the heat 
direct from one or more 
of the zig-zag tubes, so 
centering all its velocity 
in the one heat convey¬ 
ing duct. 
You can buy the 
Kelsey of your local 
dealer. 
Send to us for catalog 
and further facts. 
237 James 
Street 
Syracuse 
HE Ee-LSE 
WARM AIR GENERATOR 
154 K Fifth 
Avenue 
New York 
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TRADE 
He 1 sey s (H/Glassware 
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by the rubbing together of two limbs. 
Something more than mere local treatment 
is required in such cases. The best way is 
to cut off one of the limbs. If that cannot 
be done they must be braced apart in one 
of the ways suggested in the chapter on 
bracing. In addition, the worn places re¬ 
quire thorough wound treatment. 
The breaking off of branches is another 
frequent cause of wounds. When proper 
pruning and bracing have been neglected, 
large limbs of red and silver maples, lin¬ 
den, and such soft-wooded trees, are often 
fairly torn out by the roots. The thing 
to do in such a case is to clear away com¬ 
pletely all splintered wood and torn bark. 
The essential thing is to prevent the pos¬ 
sibility of any cracks remaining in which 
water can stand and decay begin. The 
smoothed surface must receive an especi¬ 
ally heavy dressing. If it is large and at 
all cracked, cover it with sheet metal. 
This last type of injury comes, so to 
speak, in all sizes, up to the huge wounds 
one so often sees, made by the tearing 
apart of a forked maple or elm. These are 
very serious affairs and require painstak¬ 
ing treatment in order to prevent the en¬ 
trance of decay. The part of the wound 
requiring the greatest care is the lower 
part, the stub, it might be called, of the 
broken half of the tree. If the bark and 
wood of the stub have been split from the 
rest of the trunk, they will almost cer¬ 
tainly die and permit the entrance of fungi 
and borers, no matter how effectively these 
may have been excluded from the upper 
part. The detached wood must be chopped 
or sawed away, so as to make a good water¬ 
shed, and so as to make it certain that 
there is healthy bark, in connection with 
the rest of the bark of the trunk, around 
every part of the wound, ready to start a 
callus over it. Of course it is not to be 
supposed that so large a surface will be 
grown over, at least for a very long period 
of years. The covering given the ex¬ 
posed surface should therefore be a 
thorough one, of metal or reinforced as¬ 
phalt. Large surfaces of metal on bend¬ 
ing trees have a tendency to tear out at 
the nails, a tendency however, which can 
be partly remedied by putting the metal on 
in vertical strips overlapping each other. 
Frost cracks and the effects of lightning 
will also be included in this discussion of 
mechanical injuries, for they are like the 
truly mechanical ones in result if not in 
cause. Frost cracks are fairly common, 
but their origin is not generally under¬ 
stood. The cracks first come to the notice 
as long but very narrow openings length¬ 
wise of the trunk or main branches. 
After one or two seasons they usually de¬ 
velop long, narrow, light-colored project¬ 
ing lip-like calluses on each side of the 
crack. These calluses grow and project 
farther and farther from the trunk as the 
years pass, unless a series of mild years 
permits them to grow together. The 
cracks are caused by sudden cold snaps 
which very suddenly freeze the outer 
layers of the sapwood while the heartwood 
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