CONSERVATION'S ADVERTISERS 



A Battery of the Largest Rams in the World 



(Installed by the Rife Eng-ine Co.), Capacity, 700 Gallons per Minute Each 



7,500 in successful 

 operation. U. S. 

 Government Rec- 

 lamation Serviceat 

 Powell and Chey- 

 enne. Wyo., U. S. 

 Government Plant 

 at Narragansett 

 Bay 



Over 30 railroads 

 use them for rail- 

 road tank supply. 

 Adopted by nearly 

 all the Prominent 

 colleges and insti- 

 tutions for their 

 testing laboratories 



(This is an actual photograph — not an imagrinary sketch) 



COUNTRY Ki-SIDENCES equipped with pneumatic^ or tank-and-tower water systems 



Work under 18 inches to 50-foot fall. Elevate water 30 feet for each foot of fall — up to 500 feet 



The only practical Double-acting- Rams — 2,500 in use, Rams fitted for 1-inch up to 12-inch drive pipes (in actual use) 



Capacity from 3 gallons to 700 gallons per minute 

 Rife Ram will automatically supply WATER and AIR to pneumatic tank outfits. Runs constantly — little 



attention or expense 

 CATALOGUE AND ESTIMATE FREE 



RIFE ENGINE CO.. 2172 Trinity Building. New York City 



i 



NOMccsr iM thc 1 



TiiE Eql'it.vble Life AssrRANCE Society 



Edwahd A.W^wins. Manacku 



FRICM euiLDIMG, PITTSauRG 



April 12, 1909. 

 - . John Itevey, 



Kent, Ohio. 

 Dear Slr:- 



Replylng to yours of the 9lh Inst., 

 I vould say that years ago you did some work on 

 my. treee - fleveral hvmdred of them - and I have 

 had work done hy other people on those end other 

 trees. Yoxit work, after the yeare that have elapsed, 

 fleems to have baen Intelligently, thoroly and honeetly 

 done. 



YoufS ' 



"Intelligently, Thoroughly 

 and Honestly Done" 



This tist'nijiiv to the character of the work of the Davey tree experts 

 is typical oi the hundreds cheerfully given by patrons. The supreme test 

 of any accomplishment is its endurance — its permanent benefits, as 

 measured by the passing seasons. Note particularly that this typical 

 expression as to the results of its practical application is 



The Verdict on Davey Tree Surgery 

 After the Test of the Years 



. Compared with the partial success, often amounting to real failure, of 

 thc "tree doctors," so called, who have entered the work with so little 

 appreciation of its significance or require- 

 ments. The completely efficient work of 

 the Davey tree experts is not difficult 

 to explain when the foundations of the 

 Davey methods are clearly understood. 



"Our Wounded Friends, the Trees"^ — 

 the Davey Book of Why and How 



Tells in full the fascinating story of the glorious fruition of the life-work of John 

 Davey, now carried forward in wider scale by tree doctors, trained under "thc father 

 of tree surgery." and loving their grc.it work of saving trees. This magnificent book 

 is too expensive for indiscriminate distribution, but will be mailed free to any owner 

 of trees who writes for it to Desk 11. 



THE DAVEY TREE EXPERT COMPANY 



{Operating Daoe\)'s School of Practical Forestry) KENT, OHIO 



JOHN 1»AVEY 



The Father of Tree Surger.v 



In writing to adverti.^crs kindly mention Conservation 



