Plate IX. — Showing how funnel and vane may be mounted. A, funnel; B, shaft 

 of funnel; C, C, C, 1-inch gas pipe; D, D, 1^-inch gas pipe; E, cap for support 

 of 1-inch gas pipe; F, G, H and M M and N N are stays of band iron bolted 

 together and to the sides of the shaft to support the axis of the funnel; J, 

 weather collar to turn rain out ot shaft; K, L, band-iron to stiffen vane and 

 attach it to funnel. (From Wis. Agr. Exp. Sta. Bui. 70.) 



