BIBLIOGRAPHY. 499 



Forestry, in schools, remarks, 1883, 458. 

 investigation, outline of system, 1887, 614. 



progress, article, 1880, 653. 

 list of publications, 1886, 226. 

 literature, remarks, 1886, 183. 



of the Western states and territories, article, 1878, 515. 

 state encouragement, 1875,334. 

 statistics, article, 1875, 244. 



by stales, 1884, 137. 



In the reports after the year 1886 to 1893 the following 

 articles, mostly prepared by the writer, bear on the subject of 

 this volume : 



Report for 1886 



Forestry problems of the United States. 



General principles of forestry. 

 List of ninety most important timber trees of the United 



States. 



Report for 1887. (Special, not printed in report of Depart- 

 ment of Agriculture) 



Trade notes and tariff on lumber mill capacity of United 

 States. 



Systematic plan of forestry work. 



Conditions of forestry interests in the states. 

 Report for 1888 



Forest influences. 



Cultural and trade notes. 

 Report for 1 889 



Seedling distribution. 



Timber-culture acts. 



Influence of forests on water supplies. 

 Report for 1 890 



Wood pulp industry. 



Forestry education. 



Artificial rainfall. 



