Rearing. 69 



carpentry can put it together. It should be' 

 built, we think, on the edge of the stream if 

 practicable, so as to be rolled into position in 

 the water with as little difficulty as possible. 

 The sides are first formed by laying the three 

 planks forming a side on two pieces of stout 

 "quartering," each piece 27 inches long, placed 

 two and a half inches from the squared ends of 

 the planks (which have been previously cut to 

 the same length), and nailing or screwing firmly 

 together. Cross-pieces or braces should then be 

 nailed across the side so as to strengthen them 

 and prevent " winding " ; and these should be 

 opposite each other on the two sides. The width 

 being determined, say three or four feet, the end 

 boards are cut, and nailed to the outer edge of 

 the " quartering " of each side, so as to unite the 

 sides, which must of course be parallel, and the 

 ends square and true. The boards forming the 

 bottom are now cut to the right length to 

 stretch over from one side to the other, and 



