CONSTRUCTION NOTES 331 



Base. The base should be constructed of 1:3^:3^" concrete, in which 

 the aggregate should be three-fourths inch crushed rock. The forms should 

 consist of 2 x 4 inches x 20 feet Oregon pine, surfaced four sides, especially 

 selected for straightness. Some twenty pieces will be required. The forms 

 should be set so there is a clear space of 12 feet between them and a header 

 should be centered at the 1 2-foot point. The bay is then to be filled to a 

 point three-fourths inch below the top of the forms with concrete well 

 tamped and allowed to take the initial set, after which the surface finish 

 is to be placed. 



Surface finish. The surface finish is to be mixed from one part of 

 cement to two parts fine sand to which are added two pounds of lampblack 

 for each sack of cement. The space occupied by the header is to be filled 

 with surface finish in order that the surface line may be cut through to 

 the subgrade with ease. After the surface has been brought to a plane the 

 12-foot lines are cut through to the subgrade, and the alternate lines are 

 cut through to the base. The surface is to be troweled smooth, then allowed 

 to set to the proper stage, and finally steel trowel floated in order to slightly 

 roughen the surface. The proper stage for floating is quite critical and great 

 care should be exercised in order to do this operation at exactly the right 

 time. 



Fence. The finished fence should be 12 feet high, constructed of half- 

 inch and two-inch galvanized pipe and of one-inch mesh galvanized poultry 

 netting. The two-inch pipes should be spaced 10 feet center to center, 

 placed in concrete three feet deep, and centered upon a line four inches 

 outside of the finished paving. The two-inch pipes should be cut off at a 

 height of six feet above the paving, except the corner posts, which should 

 be two inches throughout their entire height. The one-inch pipes should 

 be placed above the two-inch pipes as a part of the posts, and horizontally 

 between posts at six feet and 12 feet above the paving. The half-inch pipe 

 is to be placed through the eyebolts embedded in the concrete coping and 

 the bottom of the poultry fence attached to it. Openings for 3x7 feet 

 gates should be left at such points as may be desired. A serviceable gate 

 of these dimensions is made by the American Steel and Wire Company. 



Coping. The coping is to be of similar mixture to that in the base, 

 plastered with regular finish, eight inches wide and the top six inches above 

 the paving. The two-inch posts shall be placed along the center line of 

 the coping. The coping shall be reinforced by two lines of one-fourth-inch 

 reinforcing placed one inch from the surface on both inside and outside 

 faces. At six-foot intervals two-inch drain pipes approximately eight inches 

 long should be placed in the coping at the low end or ends of the court. 

 Galvanized eyebolts three-eighths by six inches should be embedded in the 

 coping at three-foot intervals and the galvanized half-inch pipe inserted 

 therein. 



Pipe posts. The posts should be of four-inch galvanized pipe made as 

 per accompanying sketch, and embedded in a concrete block two feet square 

 by three and one-half feet deep. 



Lining. The lines should be painted with concrete, three inches wide 

 on the ends and all others two inches wide. 



