THE IRRIGATION AGE. 



443 



THE PRIMER OF HYDRAULICS. 



The following is reproduced from a recent issue of 

 the-Engineering News. We thank the N-ezvs and Mr. Greg- 

 ory for this extended review and will state that the slight 

 errors mentioned will be corrected in the second edition: 



Hydraulics in Simple Form. 



THE PRIMER OF HYDRAULICS By Frederick A. 

 Smith, Hydraulic Engineer ; Asst. Engr., Dept. Public 

 Works, Chicago, 111.: D. H. Anderson, cloth; 5J^x7J4 

 inches; pp. vi + 217; 110 text figures; 22 tables. $2.50, 

 net; flexible leather, $3.50 net. Reviewed by John H. 

 Gregory.* 



In the "Primer of Hydraulics," consisting of 22 ar- 

 ticles and 207 pages, the author has presented much infor- 

 mation which will be of service not only to a beginner first 



"Consulting Engineer and Sanitary Expert, 

 York City. 



170 Broadway, New 



taking up the study of hydraulics but also to the practic- 

 hig engineer. In the first eight chapters, or articles as 

 they are designated in the book, the author, in simple 

 language, takes up the General Properties of Matter, 

 Algebraic Principles, Geometrical Principles, Trigonome- 

 try, Mensuration of Plane Figures, Mensuration of Solids, 

 The Principles of Mechanical Forces and The Three 

 States of Matter. 



In the following article General Hydraulic Principles 

 are discussed and the well known Kutter formula for 

 computing the flow of water is presented. The author 

 lays special stress on a new form of channel, which he 

 terms a composite section, especially adapted to accom- 

 modate a small dry-weather flow and a considerable flow 

 of storm water. The lower part of the section is formed 

 by two lines at right angles to each other, each line being 

 inclined at an angle of 45 degrees to the horizontal. The 

 upper part of the section is formed by a circle, the two 

 lines forming the lower part of the section being tangent 



WHAT THE TIETON PROVES. 



That irrigated lands are in demand 

 in Washington was conclusively shown 

 at the opening on May 25 of approx- 

 imately 40 small irrigated farm units 

 in the Yakima Project. Notwithstand- 

 ing the very small number of farms 

 available, and the exacting restric- 

 tions imposed as to residence, culti- 

 vation, and the cash deposit of about 

 $400 required with each application, 

 225 entrymen applied for the land. 

 Their aggregate deposits in the land 

 office amounted to $100,000. The wa- 

 ter right charge for these lands is the 

 highest ever assessed by the govern- 

 ment, being $93 per acre. In addi- 

 tion, the settler must pay an annual 

 assessment of $1.50 per acre for main- 

 tenance and operation. 



A QUESTION. 



How much do your .shoes cost you? 



Mental answers of $3, $4, $5, etc., 

 will probably be made in great num- 

 bers to this question, but there is a 

 surer way than that of finding out 

 what your footwear costs. 



An advertisement of "Ball Brand" 

 rubber footwear points out that a 

 boot costing $3 that wears three 

 months is more expensive than a $4 

 boot that wears six months. 



The "Ball Brand" people insist that 

 the way to figure the cost of rubber 

 footwear is on the cost per day's 

 service or week's service, if you prefer. 



It is a good idea the Mishawaka 

 Woolen Manufacturing Company has 

 given here, one that can profitably 

 be applied to other purchases. 



It is said that a great railroad 

 president cut his operating expenses 

 down 30 per cent when he finally dis- 

 covered his unit to figure on. The 

 unit was the lowest cost of hauling 

 a ton of freight a mile. 



You might apply that unit idea of 

 cost per day's wear to boot buying. 

 It is conceivable that it would war- 

 rant the purchase of "Ball Brand" 

 boots. 



Send $1.00 for The Irrigation Age, 

 one year, and the Primer of Irriga- 

 tion, a 260-page finely Illustrated 

 work for beginners In Irrigation. 



Youjdon't have to undergo the mess and dirt and bother 

 of plastering you don't have to wait weeks for it to dry 

 only to find it cracked and crazed in a dozen places. 



UTILITY WALL BOARD 



takes the place of both lath and plaster. It is put on easily 

 and quickly nailed direct to the studding. There is no 

 muss no waiting for it to dry and once in place it is there 

 to stay as long as the house lasts It will not warp, or 

 crack, or shrink It may be decorated in any style desired 

 It is more economical than lath and plaster. // is the Ideal 

 covering for walls and ceilings. 



Utility Wall Board is peculiarly adapted to 

 the Bungalow type of dwelling and to boat 

 houses, garages, chicken houses and so forth. 



Use it in making over the old house as well as in building the new. 



Send for a Free Sample And the Illustrated Book. 



THE HEPPES COMPANY 



4518 Filmore St., Chicago, 111. 



When writing to advertisers please mention The Irrigation Age. 



