30 



THE IKRIGATION AGE. 



Forest Service Circular. 



Circular 193. Forest Service, U. 

 S. Department of Agriculture, tells 

 of the mechanical properties of the 

 redwood of California from a care- 

 ful study by an engineer in forest 

 service. The subjects treated are 

 the commercial use of the wood ; 

 its distribution and characteristics. 



"Redwood grows on the Cali- 

 fornia coast in a strip extending 

 inland from 10 to 30 miles, extend- 



ing from the northern border of the 

 state southward to a little below 

 Santa Barbara. It may be con- 

 fused with the big tree noted for its 

 size and age, but these "big trees" 

 are no longer used for lumber, ex- 

 cept in cases where they are blown 

 down. 



"The heartwood varies in color 

 from a light cherry to a dark ma- 

 hogany. The narrow band of sap- 

 wood is almost white. The wood is 



IRRIGATION; 



The Brevoort 



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 installing an independent pumping plant operated by a dependable 



I H C Oil and Gas Engine 



I H C engines are so thoroughly well made and so thoroughly tested 

 before they leave the factory that all chances of their ever being unsatisfac- 

 tory are entirely done away with. In case of accident the I H C local dealer 

 is at your elbow with efficient practical assistance. An I H C outfit is the 

 most reliable and in the long run the most inexpensive outfit you can buy, 

 because of the care put into its construction and testing and the service 

 given you by the I H C local dealer. 



No matter what your needs in an engine for irrigating and general work 

 around the farm, you will find some engine in the I H C line meets them. 

 There are horizontal and vertical engines, air and water-cooled, stationary, 

 portable, or mounted on skids, built to operate on gas, gasoline, kerosene, 

 distillate, or alcohol. Sizes 1 to 50- horsepower. Kerosene-gasoline tractors 

 in all styles from 12 to 45-horse power. Sawing, pumping, spraying, grind- 

 ing outfits, etc. 



See the I H C local dealer and get catalogues and information from him, 

 or drop a line to the nearest branch house. 



WESTERN BRANCH HOUSES: Denver, Col.; Helen., Mont.; 



Portland, Ore.; Spokane. Wash.; Salt Lake City, Utah; San 



Francisco, Cal. 



INTERNATIONAL HARVESTER COMPANY OF AMERICA 



(Incorporated) 



Chicago USA 



I H C Service Bureau 



The purpose of this Bureau is to furnisli, free of charge to all, the best 

 information obtainable on better farming. If you have any worthy 

 questions concerning soils, crops, land drainage, irrigation, fertilizer, 

 etc , make your inquiries specific and send them to I H C Service Bureau, 

 Harvester Building, Chicago, USA 



generally straight-grained and is 

 comparatively light and soft, 

 though individual pieces may be 

 very hard and heavy and have an 

 irregular grain. The number of an- 

 nual rings in cross section of the 

 material tested varied from 10 to 

 50 in an inch. The bark is reddish- 

 brown in color and very fiberous. 

 "Redwood is used for all kinds of 

 construction and finishing purposes, 

 for shingles, telephone and tele- 

 graph poles, ties, paving blocks and 

 tank and pipe staves. On the Pa- 

 cific coast it is used extensively in 

 sash and door manufacture. As a 

 tie its average life is about 6 to 8 

 years, and redwood shingles have 

 been known to last 40 years. Its 

 durability in contact with the soil 

 makes it especially desirable for 

 fence posts and for telephone and 

 telegraph poles." 





ANEW 

 UOHN 

 DEER 

 BOOI 



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JOHN DEERE PLOW CO. 



Moline, Illinois 



When writing to advertisers please mention The Irrigation Age. 



