LONGLEAF PINE. 



17 



Table S. — Amount of lumber actually sawed out of 16-foot longleaf pine logs 

 of different sizes in band sawmill (Louisiana) and comparison toith the 

 Doyle-Scribner scale. 





But1 



logs. 



Logs (taken above 









the butt cut). 1 





Top 











diam- 











Doyle 



eter 





Turpen- 







rule. 



of log. 



Untur- 



tined 



Rough 



Smooth 







pentined. 



(boxing), 

 4 years. 



logs. 



logs. 2 





Inches. 



Board feet. 













6 

 7 



8 



18 

 27 

 38 





20 

 29 



41 



16 

 24 

 34 



4 

 9 

 16 





32 



9 



51 



42 



55 



47 



25 



10 



65 



53 



72 



62 



36 



11 



81 



67 



90 



79 



49 



12 



99 



81 



110 



98 



64 



13 



118 



96 



132 



120 



81 



14 



139 



114 



156 



145 



100 



15 



163 



131 



182 



172 



121 



16 



189 



151 



210 



202 



144 



17 

 18 

 19 

 20 

 21 

 22 



216 

 245 

 275 

 308 

 342 

 377 





240 

 270 

 306 



234 

 267 

 304 

 344 



387 

 432 



169 

 196 

 225 

 256 



289 

 324 





















1 The greater cut above the butt logs is accounted for by the fact that there was less defect. 

 1 The smaller cut than that shown under the heading "rough" logs is due to an increased product in 

 the form of laths, etc. 



In considering the amount of saw timber per acre yielded by long- 

 leaf pine, it should be borne in mind that the species belongs essen- 

 tially to the poorer classes of land, large parts of which are either 

 flat and poorly drained or dry and very sandy. In comparison, 

 both slash and loblolly pines occupy the more fertile, loamy, and 

 humus soil. The figures of saw-timber yields refer to what would 

 commonly be considered as very dense stands, which produce long, 

 clear trunks, yielding clear, high-grade material, but of relatively 

 small diameters for specified ages (PI. I). Had there been a con- 

 siderably smaller number of trees per acre than that shown in Table 

 1. the trees would earlier have reached merchantable saw-timber 

 8, and, therefore, would have shown larger amounts per acre, at 

 the ages, Bay, of 30 to 50 years. Denser stands, however, although 

 slower in growth, give at a little later age a higher total produc- 

 t ion of timber. 



'I able '.> shows for different ages of stand and various kinds of land 

 the approximate total yield of saw timber per acre. The market 

 i- accepting yellow pine lumber of poorer grades. This change 

 has been rapid since the rise of the extra demand for lumber in 

 about 1917. A- n result, information regarding (he actual cut <>l* 

 Lumber \«-r acre from young stands is frequently desired. The 

 amount shown under (lie heading of " mill scale'" is that which inn 



:.J7°— L'2 'A 



