152 Forestry Quarterly. 



market by being used for fence posts, box board pulp, telegraph 

 poles and telephone poles. 



American Lumberman, November 12, 1910. 



True burls are quite rare and few dealers 

 Walnut have enough knowledge to form an ac- 



Burls. curate estimate of their value from ex- 



terior appearances. Root burls covered by 

 soil are usually valuable while those growing higher up are 

 exposed to the elements, bark grown, and often insect infested. 

 Burl may take any form, but the most desired form is that of 

 a turnip. Burls at the surface of the ground send out roots and 

 the fewer roots the greater the value of the burl since the roots 

 are straight grained. They are sold by the pound at 10 to 15 

 cents and higher. 



Black walnut is a very common burl tree and is more produc- 

 tive of the malformation where the timber is somewhat dwarfed 

 and stunted. Burl veneers are cut by sawing, slicing or the ro- 

 tary process and great skill is required in opening and cutting 

 in order to get the finest figure on the same block. 



The Wood-Worker, October, 1910. 



True mahogany, Smietenia mahogani, 

 Mahogany. stands in a class by itself and most of the 



woods sold under the trade name of ma- 

 hogany are inferior. This unexcelled cabinet timber has been 

 exploited for about 200 years and large, accessible trees are now 

 scarce. It was first imported into England, unmanufactured, in 

 1724 and since that time the demand has been much larger than 

 the supply causing the use of more than twenty substitutes under 

 the trade name. The so-called African or Gambia mahogany 

 which is largely used is Khaya scnegalensis. The principal 

 American species used as a substitute is Cedrela. Other promi- 

 nent genera used are Soymida, Chnkrassia, Trichilia, Guarea, 

 Pterocarpus, Calophyllum, Cariniana, Persea, Swartzia, Caesal- 

 pinia, Eucalyptus and Tristana. 



Hardwood Record, October 25, 1910. 



