172 



apparent decrease had been greater. Chicago manufactures constitute 

 72 per cent of the manufacturing industry in Ilhnois. Applying this pcT 

 cent to wood-using industries, the indicated consumption of wood in 

 these industries outside of the Chicago district is 384,605,000 board feet 

 and the total for the state is 1,373,900,000 board feet. The indicated de- 

 crease in wood consumed outside of Chicago by these industries, based 

 on 664,681,000 feet in 1909, is 42.12 per cent and for the state as a whole 

 is 22.9 per cent. The consumption of lumber for building purposes in 

 the state as a whole including Chicago is thus indicated as 979,762,000 

 board feet and in the state outside of the Chicago district as 514,255,000 

 board feet. Of this amount, approximately 296,476,250 board feet is 

 used on farms or an average of 1250 board feet per farm annually, leav- 

 ing 217,778,850 board feet for building construction in towns other than 

 the Chicago district (Cook and DuPage counties). 



ERRATA 



p. 85, line 13 from bottom, for S7 read 86. 



P. 115, in table, for areas and area, read acres. 



P. 136, line 5, for 135 read 131. 



