NOTES. 487 



Hardwood — continued Average. Maximum. 



Ash 3.03 



Poplar (Tulip) . . .2.81 3.00 



Chestnut .... 2.71 



Maple 2.66 



Red Gum .... 1.68 

 Basswood .... 1.50 

 Cottonwood . . . .1.45 



The lumber industry is stated to be the fourth among the 

 great manufacturing industries of the country in value of prod- 

 ucts, being exceeded by the iron and steel, the textile, and the 

 meat industry. But this does not state the relative value of 

 forest products, including the large amount of fuel wood and 

 other materials of home consumption not going through the 

 mills, and the valuable by-products. 



If all these unenumerated forest products are counted in, 

 the forest resource as a producer of values is unquestionably 

 second only to agriculture. 



P. 342. Reservation of Mountain Forests in connection with 

 Irrigation. — In the western country, as Mr. Newell states,^ 

 "the forests of the arid region not only mark the greatest 

 rainfall but also indicate the locality from which come the 

 principal streams. The headwaters of nearly all of our rivers 

 which give value to the lands are within the forested regions." 

 Hence the close connection between the extensive irrigation 

 plans and forest management. 



NOTES TO CHAPTER XII. 



P. 371. Fears of Wood Famine. — The fear of a wood 

 famine troubled the minds not only of our ancestors in this 

 country but still more so in the countries of Europe a hundred 

 years ago, before railroad transportation and navigation had 



1 " Irrigation in the United States, " by F. H. Newell. T. Y. Crowell 

 & Co., 1902. 



