462 SELLINGLUMBER 



States Forest Service, which was adopted by the Southern Pine 

 Association in January, 1915, and which was presented in detail 

 to the American Society for Testing Materials, at their annual 

 convention and subsequently adopted by the society as stand- 

 ard in August, 1915. 



Based on this new density rule, a new classification for 

 structural yellow pine timbers has been established which elimi- 

 nates the names "long leaf," "short leaf" and "loblolly" pines. 

 The new rule provided two classes : Dense Southern Yellow 

 Pine and Sound Southern Yellow Pine. Dense Southern Yel- 

 low Pine includes the best pieces of what has hitherto been 

 known as long leaf pine, and excludes the occasional pieces of 

 inferior quality, for structural purposes. It also includes those 

 pieces of short leaf pine, Cuban pine and loblolly pines, which, 

 because of their density and high percentage of summer wood, 

 are equal in strength to long leaf pine, as shown from numer- 

 ous tests by the United States Forest Service and many other 

 well known authorities. 



In the following pages will be found reprinted the designa- 

 tion for Southern Yellow Pine as adopted by the American 

 Society for Testing Materials, August 21, 1915, also the specifi- 

 cations for the various grades of timbers as offered by the 

 manufacturers of Southern Yellow Pine who are subscribers 

 to the 



SOUTHERN PINE ASSOCIATION. 



New Orleans, Louisiana, U. S. A. 



March 15, 1916. 



DEFINITION FOR SOUTHERN YELLOW PINE. 



(Authorised reprint from the copyrighted Standards of The 

 American Society for Testing Materials, Philadelphia, Pa.) 



SOUTHERN YELLOW PINE. This term includes the 

 species of yellow pine growing in the Southern States from 

 Virginia to Texas, that is, the pines hitherto known as long 

 leaf pine (Pinus palustris), short leaf pine (Pinus echinata), 

 loblolly pine (Pinus taeda), Cuban pine (Pinus heterophylla) 

 and pond pine (Pinus serotina). 



Under this heading two classes of timber are designated: 

 (a) dense Southern Yellow Pine, and (b) sound Southern Yel- 



