238 Forestry Quarterly. 



OTHER CURRENT LITERATURE. 



Mechanical Properties of Woods Grown in United States. 

 (Preliminary summary of tests of small, clear, green specimens 

 of forty-nine species of wood.) Circular 213, U. S. Forest 

 Service. Washington, D. C. March, 1913. Pp. 4. 



l^ests of Packing Boxes of Various Woods. By J. A. Newlin. 

 Circular 214, U. S. Forest Service. Washington, D. C. 1913. 

 Pp. 2^. 



The tests described in the circular were made in co-operation 

 with the Bureau for the Safe Transportation of Explosives and 

 Other Dangerous Articles, Ninety-six boxes were tested of which 

 24 were nailed, 32 were wire bound, and 40 were dovetailed. 

 The work completed covers but a small part of the field of box 

 construction. 



Effect of Forest Fires on Standing Hardwood Timber. By 

 W. H. Long. Circular 216, U. S. Forest Service. Washington, 

 D. C. 1913. Pp. 6. 



The aim of this leaflet is to point out some of the direct and 

 immediate effects of light fires in a forest. Though the study 

 upon which it is based was made in the Ozark Mountains of 

 Arkansas, the results are applicable to other hardwood regions. 



Three ways in which forest fires damage standing timber are 

 discussed : 



(i) By producing fire scars through which worms enter. 



(2) By opening a passage through bark and sapwood for rots 

 to reach the heartwood- 



(3) By weakening trees with hollow butts till they either burn 

 down, die from fire girdling, or are blown over by strong winds. 



Wood Turpentines: Their Analysis, Refining, and Composition, 

 Based upon Experiments at the Forest Products Laboratory at 

 Madison, Wis. By L. F. Hawley. Bulletin 105, U. S. Forest 

 Service. Washington, D. C. 1913. Pp. 69- 



Forestation of the Sand Hills of Nebraska and Kansas. By 

 C. G. Bates and R. G. Pierce. Bulletin 121, U. S. Forest Service. 

 Washington, D. C. February, 1913. Pp. 49- 



