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AMERICAN FORESTRY'S ADVERTISERS 



A crude cement patchineffective and injurious. 



Cement patch removedshowing extensive and 

 neglected decay. 



five typical letters from 



hundreds by satisfied 



Davey clients 



Mr. Geo. M. Verity. Pres. 

 The American Rolling 

 Mill Co.. Mlddletown. 

 Ohio. 



'The work which your men 

 did on mypremiseshas every 

 evidence of being first class 

 in every respect." 



Mr. T. W. Snow. Pres. T. 

 W. Snow Construction 

 Co., Chicago, 111. 



"The work whirh you did 

 at my place six or seven 

 years ago is so satisfactory 

 that 1 have not found it 

 necessary to do anything 

 more. Every tree you 

 treated, including the worst 

 ones, have since that time 

 made new and beautiful 

 trees." 



Mr. Edward Hoi brook. 

 President The Gorham 

 Co.. New York City. 



"I wish to express the sat- 

 isfaction we have hail in 

 yonr work. The work has 

 been dune iu a thorough 

 manner and your foreman 

 and his assistants are 

 entitled to great credit." 



Mr. Win. H. Gralllln. Fals- 

 ton Manor. 1 e n c o e , 

 Baltimore Co.. Md. 



"The work done at my place 

 baa been done in a very sat- 

 isfactory way and you are 

 fortunate in having such 

 efficient and Industrious 

 employees, a refreshing ex- 

 perience in these days of 

 carelessness and shirking.* 1 



Mn. Chu. G. Weld. Brook- 

 line. Mass. 



"I am v<>ry miw-li pleased 

 with the n-tmltof your work 

 on my tree.. . . . From 

 their preaent appearance I 



<lo not aM why they -IimiiM 

 not U-i many yrar longer, 

 when*, last year we hail 

 grave dotihta aa to their 

 living.'' 



THE tree is a living organism; it breathes, assimilates food, has a real circulation. 

 Its normal condition is health, but it is subject to disease and decay just as 

 any other living thing. As with one's body or one's teeth, the tree responds 

 only to that treatment which is in scientific accordance with Nature's laws. 

 The physician, the surgeon, or the dentist requires years of patient study, plus the 

 intuitive skill born of ripe experience, before he is equipped to obtain successful 

 results. This is also exactly true in Tree Surgery. However, in Tree Surgery, 

 scientific accuracy is not enough. Think of the terrific windstorm with its bending 

 and twisting ! You will then realize that Tree Surgery must be mechanically perfect 

 to withstand it. The mechanical principles and methods of bracing employed by a 

 real Tree Surgeon would amaze you. 



Photograph No. 1 illustrates a typical case of tree 

 "patching." To the untrained eye this work prob- 

 ably looks good, but a Davey Tree Surgeon saw at 

 a glance that the conditions were bad. Growths 

 of fungus disease appeared along the edges of the 



demanding'highly specialized knowledge filling and on the bark between the large and small 



and remarkable skill for its successful lllngs - 



Trees cannot be "patched" like barn 

 doors. Men without long training and 

 experience cannot save them. Tree Sur- 

 gery is a science unto itself a ' 



science 



application. 



Facts little understood 



Because the facts set forth above have 

 not been understood, great injury has 

 been done to thousands of trees every- 

 where and a vast amount of money has 

 been wasted in disastrous tree "patching." 

 It has been the fault of nobody in par- 

 ticular. Tree owners simply have not 

 realized the degree of scientific knowledge 

 and mechanical skill required in the per- 

 manent saving of trees. And " tree patch- 

 ers" the men who have been doing the 

 faulty and dangerous work are in many 

 cases conscientious enough, but ignorant 

 of the facts and lacking in skill. 



Photograph No. 2 shows the filling taken out. 

 Nearly every principle of the science of Tree Sur- 

 gery had been violated the rough decay only had 

 been removed; the cavity had not been disinfected; 

 the condition of decay behind this crude cement 

 patch was actually appalling, and the filling had only 

 been in two or three months; no bracing of any kind 

 had been used; no means had been provided to ex- 

 clude moisture; the large filling had been put in as 

 a solid mass, making no allowance for the sway of 

 the tree. 



Photograph No. 3 shows all decay removed by a 

 Davey Tree Surgeon; the cavity thoroughly disin- 

 fected and waterproofed; the mechanical bracing 

 partly in place; the watersheds cut to exclude 

 moisture. 



Photograph No. 4 shows the Davey filling com- 

 pleted, put in sectionally to permit swaying without 

 breaking the filling. This tree has since stood through 

 many severe storms in perfect condition. New bark 

 is now growing over the filling along the edges. The 

 tree has been saved permanently! 



Davey Tree 



Every real Davey Tree Surgeon is in the employ of the Davey Tree Expert Com- 

 pany and the public is cautioned against those falsely representing themselves 



