288 



THE IKKIGATION AGE. 



UTAH. 



A gratifying response to the request of the 

 State Reclamation Company of Utah for 10,000 

 subscribers to the fund to reclaim the waste land 

 lying between the Jordan river and the Great Salt 

 lake, is reported by O. L. Gibelee, the secretary of 

 the company. Mr. Gibelee states that the public 



(Continued on page 293.) 



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Statement of the Ownership, Management, Circula- 

 tion, Etc., 



of Irrigation Age, published monthly at Chicago, 111., 

 required by the Act of August 24, 1912. 



Editor, D. H. Anderson, Boyce building. Chicago. 

 Business Manager, F. E. Anderson, Boyce building, 

 Chicago. 



Publisher, D. H. Anderson, Boyce building. Chicago. 

 Owners: (If a corporation, give names and addresses 

 of stockholders holding 1 per cent or more <>f total 

 amount of stock.) 



D. H. Anderson, Chicago. 



Known bondholders, mortgagees, and other security 

 holders, holding 1 per cent or more of total amount of 

 bonds, mortgages or other securities: None. 



D. H. ANDERSON. 



Sworn to and subscribed before me this 1st day of 

 July, 1913. 



MICHAEL J. O'MALLET, 



[Seal.] Notary Public. 



(My commission expires March 8, 1916.) 



. Send $1.00 for 1 year's subscription to the IRRIGA- 

 TION AGE and bound copy of THE PRIMER OF IRRIGA- 

 TION. If you desire^ a copy of The Primer of Hy- 

 draulics, add $2.50 to above price. 



Ready Now : The Primer of Hydraulics 



By FREDERICK A. SMITH, C.E., Hydraulic Engineer 



This new book is a splendid volume of over 200 pages of 

 absolutely new matter pertaining to the subject of Hydraulics 

 and its allied branches. All the subjects treated of are han- 

 dled in a simple and practical way to make them of use to the 

 men who have been unable to obtain a college education, but 

 who are successful practical men in fields where they require 

 a knowledge of the principles of Hydraulics and instructions 

 how to solve their problems in a simple and satisfactory 

 way. This book is indispensable for anyone engaged in 

 works relating to Hydraulics, Irrigation or Drainage; it 

 is primarily designed for the practical man in the tield. 

 but will be equally welcome to the trained Hydraulic 

 Municipal and Railroad Engineer especially, on account of the 

 many valuable tables compiled by the author, which will save 

 a tremendous amount of time in computations. 

 Condensed Table of Contents. 

 General Properties of Matter. 

 Algebraic Principles. 

 Geometrical Principles. 

 Trigonometry. 



Mensuration of Plane Figures. 

 Mensuration of Solids. 

 The Principles of Mechanical Forces-. 

 The Three States of Matter. 

 General Hydraulic Principles. 

 The Coefficient of Roughness. 

 How to calculate n. 

 Explanation of the "C" Tables. 

 Open Channels Problems. 

 Closed Channels Problems. 

 Pipes Flowing Full Under Pressure. 

 Loss of Head by Enlargement of Channel. 

 Subdivisions of Channels. 

 Loss of Head at Entrance to Pipes. 

 Ditches. 



Ditch Tables and Their Applications. 

 Flow Measurements. 

 The Use of Logarithms. 



Tables. 



Fourteen tables giving the factor C for all cases of chan- 

 nels for a coefficient of roughness ; n varying from 

 008 to .050, inclusive, for channels having a hydraulic 

 radius from .01 ft. to 900.0 and for slopes varying from 

 0.1 to .000025, thus practically covering every possible 

 condition. 



Tables of square roots of numbers used for r and s. 

 Table of Hydraulic Elements of the Circle. 

 Table of Hydraulic Elements of Composite Section. 

 Table of Areas and Circumferences of Circles. 

 Table of Hydraulic Equivalents. 



Table of Weights of a Cubic Foot of Various Substances. 

 Conversion Table of United States and Metric Measures 



and Weights. 



Table of Squares, Cubes, Square Roots and Cube Roots. 

 Table of Logarithms. 

 Table of Natural Sines and Cosines. 

 Table of Natural Tangents and Cotangents. 

 Conversion Table, millions of gallons in 24 hours in other 



units. 



TaDie of sizes of pipes or cylindrical conduit^ required for 

 the flow of given quantities of water at given veloc- 

 ities. 



Most all ot these tables have been originated and 

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The price of the book has been placed as low as is 

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 tion to Irrigation Age or a renewal subscription, the 

 book will be sent and the Irrigation Age one year for 

 the sum of $3.00. 



Postage is included in the above prices. 



Send in your orders early, so as to receive early attention. 



Send all orders and remittances to 



Irrigation Age, 30 N. Dearborn St., Chicago. 



