THE ALTERNATE AND PARALLEL SYSTEMS. 215 



three sticks are slightly further toward the rear or back- 

 ground than the post, a. In Fig. 129,, E represents an 

 exit for the fowls, closed bj a small door opening up- 

 ward, as shown by the dotted lines. TFis a window, like- 

 wise hinged at the top and opening in the same way as 

 the exits. The exit doors, leading to the outside yards 

 in a building hundreds of feet long, are all raised or 

 lowered at one operation, and the same applies to the 

 windows, although the device for accomplishing this im- 

 portant purpose, a great labor saver, could not well be 

 shown in this cut. As the windows and exit doors fall 

 and are held in place by their weight, augmented by a 

 brick or a portion of one attached to each, or, as is the 

 case in our own building, photographed for Figs. 77 and 



FIG. 105. END VIEW OF FEED SIEVE. 



128, a box of sand nailed to each, the slanting position 

 when closed is essential to the success of this plan. As 

 is plain, e and/" are pu rimes that extend the whole length 

 of the building, being shown in three of the cuts. In 

 Fig. 129, the slight notching at the edge of c shows where 

 the iron axle of Crests. The building is underground 

 as far as the tops of the brick walls in this cut and the' 

 roof is of inch boards covered with the best quality of 

 felt paper and finished with two coats best cement applied 

 hot, and on top of all is placed eight inches of straw, and 

 on the straw cornstalks and brush to withstand the wind. 

 This sort of roof and the underground feature secure 

 warmth in winter and coolness in summer. When the 

 temperature is 90 degrees outside it is but 80 degrees 

 inside. 



