THE IEEIGATION AGE. 



1069 



also shown and which enables the user to set the device 

 so as to get his exact allowance of water. Professor R. 

 D. Kneale of the Montana State College of Agriculture 

 and Mechanical Arts certifies that the box will give re- 

 sults, being accurate to within 5 per cent, which is un- 

 usually reliable. Directions for setting and using are also 

 appended. ( Editor. ) 



Cu rye^ for Comhinahon Headqate^ 



Directions for Setting. 



1. Place the box so that the floor is level. This can 

 be done by leveling with water, or by using a spirit level. 



2. See that there is sufficient fall below the lower 

 nd so that the water passing through the box will not 

 accumulate and back up against the box. 



Directions for Using. 



1. Select from the lower edge of the rating sheet the 

 number of Montana miner's inches desired. Follow a 

 straight line from this point up to the curve of the box in 

 use. From the point thus found on the curve, follow a 

 straight line to the left edge of the sheet. The number 

 found on the left edge will be the inches of opening re- 

 quired. Open and fasten the lower gate at this opening. 



2. Admit sufficient water at the upper gate to raise 

 the water three inches above the upper edge of the lower 

 opening. 



Note. If the wave motion gives trouble in deciding 

 when the water is three inches above the lower opening, 

 estimate the Correct amount by vibrations, that is, see 

 that the wa*e exposes as much surface below the three- 

 inch line as it covers above that line. 



SILOS FOR MISSOURI. 



The Agricultural Experiment Station at Columbia, 

 Mo., has just issued two new silo bulletins. They are: 

 Circular No. 48, "The Plastered or Curler Silo," and Cir- 

 cular No. 49, "The Reinforced Concrete Silo." 



The Curler silo is especially adapted to those sections 

 of Missouri where there is still a supply of native lumber. 

 It is cheap, fully as lasting as a wood silo, and preserves 



its contents as well as any more expensive structure. The 

 reinforced concrete silo is built of solid concrete with 

 iron rods or strands of wire running through the walls to 

 prevent cracking. It is adapted to any section of the 

 country where sand and gravel or crushed rock may be 

 obtained and on account of its great durability it is prob- 

 ably the cheapest of all silos in the long run. 



Anyone desiring information in regard to the details 

 of building either the plastered or the solid concrete silo 

 should write for these bulletins. They may be obtained 

 free of charge by addressing F. B. Mumford, Director, 

 Columbia, Missouri. 



Subscribe for THE IRRIGATION AGE only one dollar per 

 annum and over 400 pages of reading matter pertaining to 

 irrigation and reclamation. 



Plow Without Levying 



or Dead-Furrows. 



The JOHN DEERE Two-Way Sulky Plow 

 Best for Irrigated Lands, Sidehill Plowing, 

 or in Dry Farming Sections 



Here is a plow that leaves no dead furrows to fill up no back 

 furrjws to drag down. 



Start on one side, plow back and forth, finishing up on the 

 other side field left level. 



You can follow right after the plow with hart owing 

 and seeding no centers to plow out. 



You can throw the dirt all one way on a side hill 

 or plow irregular fields with no short "lands" to finish. 



Lasts as long as two plows. 

 % Write for booklet free if you mention Irrigation Age 



K John Deere Plow Co., - Moline, Illinois 



' -c-s 



When writing to advertisers please mention The Irrigation Age. 



