374 Forestry Quarterly 



attacks trees of all ages, killing or suppressing the youngest and 

 seriously retarding the older trees. Jack pine is, however, com- 

 paratively free from certain diseases which are common to other 

 conifers, and is also resistant to drought, winter injury, and frost, 

 but is sensitive to heat. 



The Naval Stores Industry. By A. W. Schorger and H. S. 

 Betts. Bulletin 229, U. S. Department of Agriculture. Contribu- 

 tion from the Forest Service. Washington, D. C. 1915. Pp. 58. 



The Production of Lumber, ipij. By the Office of Industrial 

 Investigations. Bulletin 232, U. S. Department of Agriculture. 

 Contribution from the Forest Service in cooperation with the 

 Bureau of Crop Estimates. Washington, D. C. 1915. Pp. 32. 



Utilisation and Management of Lodgepole Pine in the Rocky 

 Mountains. By D. T. Mason. Bulletin 234, U. S. Department 

 of Agriculture. Contribution from the Forest Serv^ice. Wash- 

 ington, D. C. 1915. Pp. 54. 



Life History of Shortleaf Pine. By W. R. Mattoon. Bulletin 

 244, U. S. Department of Agriculture. Contribution from the 

 Forest Service. Washington, D. C. 1915. Pp. 46. 



A Disease of Pines Caused by Cronartium pyriforme. By 

 G. H. Hedgcock and W. H. Long. Bulletin 247, U. S. Depart- 

 ment of Agriculture. Contribution from Bureau of Plant Indus- 

 try. Washington, D. C. 1915. Pp. 20. 



The National Forests and the Farmer. By H. S. Graves. Re- 

 print from the Yearbook of the Department of Agriculture for 

 1914. Washington, D. C. Pp. 65-88. 



Observations on Rhizina Inflata. By J. R. Weir. Reprint 

 from Journal of Agricultural Research, U. S. Department of 

 Agriculture. Washington, D. C. April 15, 1915. Pp. 4 PL I. 



This peculiar fungus occurs quite abundantly as a saprophyte 

 on the ground in the forest fire areas of the Northwest. There 

 is reason to believe that as a parasite it attacks the roots and 

 causes the death of coniferous seedlings. 



