S6 
House & Garden 
Teeth You Envy 
Are brushed in this new way 
Millions of people daily now 
combat the film on teeth. This 
method is fast spreading all the 
world over, largely by dental 
advice. 
You see the results in every 
circle. Teeth once dingy now 
glisten as they should. Teeth 
once concealed now show in 
smiles. 
This is to offer a ten-day test 
to prove the benefits to you. 
That cloudy film 
A dingy film accumulates on 
teeth. When fresh it is viscous 
—you can feel it. Film clings 
to teeth, gets between the teeth 
and stays. It forms the basis of 
cloudy coats. 
Film is what discolors—not 
the teeth. Tartar is based on 
film. Film holds food substance 
which ferments and forms acid. 
It holds the acid in contact 
with the teeth to cause decay. 
Millions of germs breed in 
it. They, with tartar, are the 
chief cause of pyorrhea. Thus 
most tooth troubles are now 
traced to film, and very few 
escape them. 
Must be combated 
Film has formed a great 
tooth problem. No ordinary 
tooth paste can effectively com¬ 
bat it. So dental science has 
for years sought ways to fight 
this film. 
Two ways have now been 
found. Able authorities have 
proved them by many careful 
tests. A new tooth paste has 
been perfected, to comply with 
modern requirements. And 
these two film combatants are 
embodied in it. 
This tooth paste is Pepso- 
dent, now employed by forty 
races, largely by dental advice. 
Other tooth enemies 
Starch is another tooth 
enemy. It gums the teeth, gets 
between the teeth, and often 
ferments and forms acid. 
Nature puts a starch digest- 
ant in the saliva to digest those 
starch deposits, but with mod¬ 
ern diet it is often too weak. 
Pepsodent multiplies that 
starch digestant with every ap¬ 
plication. It also multiplies 
the alkalinity of the saliva. 
That is Nature’s neutralizer for 
acids which cause decay. 
Thus Pepsodent brings effects 
which modern authorities de¬ 
sire. They are bringing to mil¬ 
lions a new dental era. Now 
we ask you to watch those ef¬ 
fects for a few days and learn 
what they mean to you. 
The facts are most impor¬ 
tant to you. Cut out the 
coupon now. 
The New-Day Dentifrice 
Endorsed by modern authorities and now advised by leading den¬ 
tists nearly all the world over. All druggists supply the large tubes. 
Ten-Day Tube Free 85 
THE PEPSODENT COMPANY, 
Dept. 113,1104 S. Wabash Ave., Chicago, Ill. 
Mail 10-Day Tube of Pepsodent to 
Only one tube to a family 
You’ll enjoy it 
Send this coupon for a 10- 
Day Tube. Note how clean 
the teeth feel after using. 
Mark the absence of the 
viscous film. See how teeth 
whiten as the film-coats dis¬ 
appear. Get the agreeable 
after-effects of a naturally 
alkaline mouth. 
The 1 m a r i Ware of Japan 
( Continued, jram page 84) 
this article have been obtained through 
the courtesy of Mr. Harry Maxwell, of 
Kobe, Japan, from photographs in his 
private collection, which I have been 
told is one of the most important in 
Japan. Led by an interest in Imari 
Ware, Mr. Maxwell started many years 
ago to form a dinner set of Imari, se¬ 
lecting only such pieces as were, in his 
judgment, of the finest quality. Writ¬ 
ing of his collection, Mr. Maxwell says: 
“Like Japanese color prints. Imari was 
long neglected by the Japanese, but 
when foreigners had nearly cleared the 
country of the finest examples, the Jap¬ 
anese collectors awakened to the charms 
of this porcelain and Imari, in conse¬ 
quence, is now rarely to be obtained.'’ 
The pieces in Mr. Maxwell’s collection 
date back, with some exceptions, from 
one to two centuries. Mr. Maxwell 
says: “There is no mistaking the old 
Imari Ware, as it is impossible to imi¬ 
tate it today. The Imari of the present 
time is quite a different article, both in 
colors and in forms. Mr. Maxwell's col¬ 
lection also contains some fifty-two 
pieces of reproductions made some forty 
years ago of the 17th Century Imari 
patterned with Dutch ships and figures. 
Operating on Trees 
(Continued from page 53) 
short time the work was worthless, and 
in many cases really harmful. The 
same is true in regard to cavities in trees, 
and consequently one of the first and 
most important tasks is to remove every 
particle of decayed or diseased wood. 
When a wound of any consequence is 
made in your protective skin, one of 
the first things you do is to put on it 
iodine or some other disinfectant which 
will kill the germs which are almost om¬ 
nipresent and infect open wounds in 
living tissues. Now, the tree’s wood 
is living tissue and germs thrive there 
in a luxuriant fashion. Therefore when 
your trees are treated, see that a proper 
disinfectant is used on every wound. 
In most cases the protection result¬ 
ing from disinfection is of comparative¬ 
ly short duration and it must be insured 
by something more permanent. This 
insurance is usually provided by a 
waterproofing or wound dressing of 
some kind. Unfortunately such dress¬ 
ings do not all possess the same merit. 
In spite of the fact that many have 
recommended coal tar and asphalt prod¬ 
ucts, experiments have proved beyond 
the possibility of doubt that the creo¬ 
sote contained in these remedies kills 
back the tender growing and healing 
bark from one eighth of an inch to two 
or three inches from the edge of the 
wound. This means a much larger 
wound, with several years additional 
time needed for healing. 
Most of the wood which ordinarily 
decays forms the structural strength of 
the tree. It is only natural then, that 
a decided weakness is always present at 
the point where a cavity is made. This 
strength must be restored as nearly as 
possible with mechanical bracing. Some 
of the strains will be taken by the brac¬ 
ing itself. Also the separate parts of 
the tree will be so bound together that 
they will work in unison, resisting the 
stresses in the most efficient way. The 
proper bracing of a weakened tree neces¬ 
sitates much training and experience for 
the successful application of accumulated 
technical knowledge. 
After the cavity has been braced it is 
ready for filling. It might be mentioned 
here that some tree men advocate that 
cavities should not be filled. However, 
experiments have proved that cavities 
made in sound wood, and then carefully 
and thoroughly waterproofed, are so 
subject to fungous diseases that within 
a period of ten months luxuriant fungous 
growths had developed in ninety per 
cent of the unfilled cavities. It might 
also be said at this point that no filler 
has yet been discovered which will suc¬ 
cessfully take the place of sectional con¬ 
crete fillings. Many have been tried, 
some at the direct expense of the tree 
owners and to the direct harm to val¬ 
uable trees, but all of them have been 
found wanting. One of the substitute 
fillers highly recommended in a book 
published on the care of trees was tried a 
few years ago in an experimental way, 
and now the fillings are on the ground. 
Of course it is taken for granted that 
the cavity to be filled has been properly 
shaped to receive and hold the filling. 
This filling is made of concrete com¬ 
posed of the proper mixture of sand and 
cement and wet so that it has neither 
too much nor too little water in it. 
Starting at the bottom the concrete has 
to be built up in sections of the proper 
size one above the other with a piece of 
weather-proof tarred paper between. 
These tar paper joints serve a dual pur¬ 
pose. First, they allow for expansion 
and contraction during the heat of sum¬ 
mer and the cold of winter. Second, 
they are built in much the same shape 
as a ball and socket joint, thus permit¬ 
ting the otherwise inflexible Ailing to 
move with the swaying and bending of 
the tree in the wind. 
Like many other things worth while, 
only time will disclose the benefits or 
injury from cavity work in trees. The 
callousing or healing over the entire 
edge of the filling is the most trust¬ 
worthy sign of benefit. This healing 
should be well on its way by the middle 
of the season following the operation. 
In this way the wound is quickly and 
securely sealed against all outside in¬ 
fluences. It is assumed, of course, that 
the filling is of a kind that will remain 
permanently in place. 
In order to facilitate the healing it is 
necessary to shape the cavity in a cer¬ 
tain way. If you have ever examined 
very carefully the usual healing around 
a tree wound, you have probably no¬ 
ticed that most of the new growth is 
along the sides of the wound and very 
little is developed at the top and bottom. 
Following this fact in cavity treatment, 
it is well to make all the edges of the 
cavity as sides. This leaves the top and 
bottom as points and there is no place 
where healing is not rapid. 
Still another great aid to rapid cal¬ 
lousing is the careful preservation of the 
tender growing tissues in the cambium 
wherever it is cut. It often happens that 
uncared for cambium will dry out and 
die back, causing the bark to break 
away from the wood for several inches 
around the edges of the cavity. Some 
material such as shellac, which will not 
injure the tender tissues and which wi'l 
dry almost immediately, must be used 
to insure success. 
Detail after detail could be mentioned 
and described, each one of which makes 
for or against successful cavity treat¬ 
ment. However, if those already dis¬ 
cussed will to a slight degree help niy 
readers to protect themselves and their 
trees this article will render some meas¬ 
ure of service to those who own and 
love trees. 
