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PUBLISHED IN THE INTEREST OF IRRIGATION FARMERS, 



DEALERS IN AND MANUFACTURERS OF, IRRIGATION AND 



GENERAL, FTARM M A.CHINERY. 



Voi,. xxin. 



CHICAGO. MAY. 



No. 7 



Ditches Dug To Dimensions 



A dredge-dug ditch must be dug one or two 

 feet deeper and several feet wider than specified 

 dimensions to provide for caving banks. "Let 

 Nature do the trimming," says the dredge man. 

 Well, every engineer knows that "Nature does 

 the trimming" in dredge-dug ditches, and she 

 does it in her own sweet way by washing the soft 

 parts of the banks down onto the bottom and 

 leaving the harder parts standing out between 

 like teeth on a rake. One of these "nature 

 trimmed" ditches bears about as much resem- 

 blance to the engineer's cross-section as a cow- 

 path does to a park boulevard. 



But poor appearance is not the worst evil of 

 dredge-dug, nature trimmed ditches. Nature's 

 trimming is a. process of caving. In order 

 that caving can take place without stopping up 

 the channel, the ditch, as stated above, has to be 

 dug both deeper and wider. In small ditches it 

 is frequently necessary to remove twice the yard- 

 age called for by the specifications to produce a 

 ditch, which will be of the required capacity 

 when Nature has done her trimming. 



THE 



AUSTIN DRAINAGE EXCAVATOR 



does not depend on Nature to do the trimming it digs the ditch and trims it to exact slope all at the 

 same time and in one operation. Not a cubic foot of dirt not called for by the blue print cross-section is 

 removed. A shapely, non-caving ditch is dug, and this ditch stays dug and In shape for years. 



Send for our catalogue S, showing comparative views of dredge-dug and Austin Drainage Excavator Ditches 

 and observe the difference. 



F. C. Austin Drainage Excavator Company 



New York Office, 90 West Street Main Office, Railway Exchange, Chicago, 111. 



Morris Machine Works 



BALDWINSVILLE, N. Y. 



Centrifugal Pumping Machinery, designed for 

 any irrigating proposition. Stnd details or 

 specifications of what is wanted and we will 

 recommend a pumping outfit to supply the need 



New York Office, 39-41 Cortlandt Street 



Houston Office. Cor. Wood Willow Sts., Texas 



Henion 4 Hubbell. Agents. 61 N.Jefferson St.. 



Chicago. 111. 



Huron, Rickard McComb, Agents, 

 21 Fremont Street. San Francisco, Cal. 



