April, 1917 
67 
No. 3. Davcy Tree Sur¬ 
geons removed every par¬ 
ticle of decay, disinfected 
the entire cavity to de¬ 
stroy the existing disease, 
thoroughly waterproofed 
the inside, cut watersheds 
to exclude moisture and 
carefully braced the shell 
mechanically 
No. 4. Here is the finished result of 
science plus skill. The strength of the 
tree, destroyed by decay, has been re¬ 
stored by mechanically perfect Davey 
methods. The filling was put in by 
sections to permit the normal sway of 
the tree without cracking the filling. The 
new bark is growing over the edges of 
the filling and in time will cover it 
entirely. This tree is now in perfect 
health—permanently saved—responding 
gloriously to the marvelous skill of 
Davey Tree Surgeons who know how 
and why. 
Are you fooling 
yourself about 
your trees? 
A RE you making the dangerous mistake 
about tree surgery that was made by 
the owner of the tree shown here¬ 
with? (Small photograph No. 1 below.) 
Read the following facts—they may prove 
a revelation. 
The owner of the tree sliown here thought 
that Tree Surgery was merely a matter of 
patching cavities with cement—something 
which almost any clever fellow could do. 
The result to his trees was costly and disap¬ 
pointing. Davey Tree Surgeons found that 
this tree (Photo. 1), which the owner thought 
had been saved, was in a really critical condi¬ 
tion, disease and decay continuing unchecked 
behind the fillings. The entire work had to 
be torn out and done again— done right. Pho¬ 
tographs Nos. 1, 2, 3 and 4-;-a typical tree— 
tell the story. (See descriptive matter under 
photographs.) 
Tree Surgery a Specialized Science 
Tree owners sometimes confuse Tree Surgery 
with Forestry. These two professions are as 
widely separated as dentistry and medicine. 
The Forester is trained to deal with trees in 
the, mass, culturing them primarily for lumber 
supply. As Bernard E. Fernow, Dean of 
Faculty of Forestry, University of Toronto, 
puts it: “The forester grows trees not to be 
preserved, but to be harvested.” 
The Tree Surgeon, on the contrary, is inter¬ 
ested in the individual tree; to prolong its life 
is his sole aim. He knows little or nothing 
about forestry and is entirely unequipped in 
training and experience to cope with its 
problems. 
Forestry is a worthy profession doing a great 
economic work. But to entrust the saving of 
your priceless specimen trees to a Forester is 
certain to result in disaster. 
For real Tree Surgery, there is only one safe 
place to go—to Davey Tree Surgeons. 
Davey Tree Surgery Is Safe 
Safe- —because it is time-proved; its record of suc¬ 
cessful performance for thousands of estate owners 
spanning a generation. 
Safe —because no Davey Tree Surgeon is allowed 
any responsibility until he has conclusively demon¬ 
strated his fitness. He must have served his full 
course of thorough, practical training and scientific 
study in the Davey Institute of Tree Surgery—a 
school, the only one of its kind in the world, which 
we conduct for the specific purpose of drilling our 
men according to Davey methods and Davey ideals. 
Safe —because Davey Tree Surgery has been en¬ 
dorsed as best by the United States Government, 
after exhaustive official investigation. 
Safe —because Davey Tree Surgeons are picked men, 
thoroughly trained, conscientious, intelligent, cour¬ 
teous, in love with their work. 
Safe —because the Davey Company is a successful 
and responsible house, amply able to make good in 
every instance and not needing, for the sake of 
temporary existence, to sacrifice in the slightest de¬ 
gree its high standards. 
Four typical letters from hundreds by 
satisfied Davey users. 
Archibald H. Bull, Pres., A. H. Bull Steamship 
Co., New York City: 
“I am very much pleased and satisfied with your 
work.” 
A. P. Lovejoy, Janesville, It’is.: 
“Your work is efficient and scientific, your men 
capable and business-like.” 
Mrs. Susan Wheeler, Bryn Mawr, Pa.: 
"The work you have done for me has been en¬ 
tirely satisfactory. I fully believe that it has 
added to the life of my trees, for which I am 
very thankful.” 
F. E. Atteau.v, F. E. Atteau.r S' Co., Inc., Boston, 
Mass.: 
“I am pleased to say that your work is perfectly 
satisfactory in every way.” 
Write today for Free Examination of Your Trees 
—and booklet, “When Your Trees Need the Tree Surgeon." 
Wliat is the real condition of your trees? Are insidious 
diseases and hidden decay slowly undermining their strength? 
Will the next severe storm claim one or more as its victims? 
Only the experienced Tree Surgeon can tell you fully and 
definitely. Without cost or obligation to you, a Davey Tree 
Surgeon will visit your place, and render an honest verdict 
regarding their condition and needs. Write today. 
The Davey Tree Expert Co., Inc., 
504 Elm Street, Kent, Ohio 
{Operating the Davey Institute oj Tree Surgery, Kent, Ohio) 
Branch offices, with telephone connection: 225 Fifth Ave.. 
New York: 2017 Land Title Bldg., Philadelphia; 
450 McCormick Bldg., Chicago. 
Permanent representatives located at Boston, Newport, Lenox, 
Hartford, Stamford, Albany, Poughkeepsie, White I*lains, 
.lamaica, L. I., IMorristown, N. J., Philadelphia, Harrisburg, 
Baltimore, Washington, Buffalo. Pittsburgh, Cleveland, De¬ 
troit, Cincinnati, Louisville, Chicago, Milwaukee. Minne¬ 
apolis, St. Louis. Kansas City. Canadian Address: 81 St. 
Peter Street, Quebec. 
No. 1. This tree had 
started to decay. The 
owner saw this, but did 
not realise that it re¬ 
quired scientific treat¬ 
ment. So he allowed 
an untrained man to 
'"patch the holes’" with 
cement. This "‘patch¬ 
ing” was worse than 
useless—it was positive¬ 
ly harmful. 
No. 2. The cement 
patches were removed 
by Davey Tree Sur¬ 
geons. and there was re¬ 
vealed an appalling con¬ 
dition of disease and 
decay. The tree had 
become a mere shell, 
liable to crash to pieces 
in any severe storm. 
Davey Tree Surgeons 
FOR SAFE TREE SURGERY 
Every real Davey Tree Surgeon is in the employ of the Davey Tree Expert Company and the public is cautioned against those falsely representing themselves 
