Successful Tree Surgery absolutely 
must do these four things : 
t 
*-~r- 
1 Allow for tree sway, thus insuring permanence of 
filling. 
2 Restore to tree the physical strength destroyed 1>\ 
O Kill all disease, to stop process of decay. 
4 Absolutely exclude water. This also prevents further 
ch i . 
Photographs 1 and 2, on the left, illustrate a typical ca< 
"tree butchery" by inexperienced, irresponsible tree men, 
hundreds of whom are imposing themselves on the public 
today. They fail entirely in the four essentials set forth 
above. Photographs 3 and 4. on the right, illustrate a typi- 
cal case of real Davey Tree Surgery. It is perfect in all four 
itials. 
"Tree Butchery" 
Filling. The filling in tins tree 
to pieces and is falling 
out. It w as put in as a solid 
mass, no allowance having been 
mad< For the swaj of the tree. 
Xo solid filling of any size can 
withstand this strain. 
Bracing. Absolutely no bracing 
was used in this tree. "Tree 
Butchers" seldom brace trees; 
they do not seem to undei 
the necessity for it nor the correct 
mechanical principles involved 
(see photograph 2) Proper me- 
chanical bracing is ultra- impor- 
tant. 
The Cavity. In this case the 
ivas nol even thoroughly removed, 
and no effort had been madi to 
disinfet t thi i a.\ ity to kill the dis- 
ease, The result was just what 
j ..ni w i luld expet t in a tooth 
treated in a liki manm r an ag- 
, ,1 condition ol dei > ■ and 
i i pi! 1 I > increa sing 
Excluding Water. \\ 
lilling hastens and intensifies de- 
cay. Therefore, it is vitally im- 
portant to exclude it. "Tree 
Butchers"' do not sei m to I ike this 
1 1 1 I 1 1 1 1 M i , and h a v< no I 
edge of the methods that 
!>e employed, Would you 
the black smith to I re it vi iur 
teeth 
Tree Surgery 
Filling. The lilling in this tree 
is standing perfectly in spiti ol 
the terrific strains of past storms. 
Put in by sections, each division 
forms a ball-and-socket joint, al- 
lowing for the su ay of the tree. 
This is a patented Davey method. 
Bracing. The internal bracing 
used li> Dave j Tree Surgeons 
meets every mechanical need. It 
restores the physical strength de- 
stroyed by decay, and binds the 
individual sections to each other 
and to the tree, making a physi- 
cally perfect unit. 
The Cavity. A}\ cavities treated 
li\ Dave} Tre e Surgeons are thor- 
oughly cleaned out, no matter 
how far the decay extends- The 
entire sui F; ' the cavity is then 
disinfected and waterproofed, As 
in dentistry, the greatest can is 
i:l in the preparation ol tin 
. Lvil 
Excluding Water. Dave; fi 
Surgeon s ust in i veri ca \ it} a di 
vice known as thi tei died,' 
which excludes from the i ivit; 
ever pari ich of moi si ure. By 
keeping thi 
furthei decay, and thus the fill 
ing becomes a perman en 1 ■ -■ 
The water-shed is i iatented 
W 
rite for free examination of your trees, and booklet, "When Your Trees Need the Tree Surgeon" 
Davey Tree Surgeons 
THE DAVEY TREE EXPERT CO., Inc., 320 Elm Street, KENT, OHIO 
■ ■ ■ ' ■ ■ 
I . City- 
Perm local : it Boston, Newport, In... , \. Y., 
L. T . Newark, N. J., Philadi . I ington, Bufl . P 
land, Detroit, ' . Chicago, Milwaukee, Vlinnea] is, Kansas City. Canadian Address 81 Si 
Pel e i st reet . Quebec. 
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