758 Forestry Quarterly. 



of the vertical length of the tree." The maximum scar each 

 year is 15". The season is March 15 to November 15. 



The Indian Forester. June, 1912. Pp. 271-275. 



Tannin The tannin contents of the mangroves 



from (100,000 acres in East Africa) vary greatly 



Tropical not only from species to species but from 



Timber individual to individual. The red color of 



the tan is objectionable to its use ; it also im- 

 parts a soft spongy condition to the leather. Hence the market 

 has so far not been favorable. There has, however, in 1907, 

 a process been inaugurated by the firm Fuerlein in Stuttgart, 

 which removes from the mangrove extract the red color. Those 

 mangroves which contain 35 to 4S% of tannin lend themselves 

 to extract manufacture, which is more cheaply done in Germany 

 than at the places of their occurrence. 



The native Acacias which contain tannin have so far not 

 appeared profitable for world market, but the cultivation of Black 

 Wattle from Australia is advocated by Semper. Neither do the 

 Combretum and Terminalia species appear promising in this 

 respect. 



Die Anssichten der Gerbstoff production in den detitschen Kolonien- 

 Zeitschrift fiir Forst- und Jagdwesen. January, 1910. Pp. 48-52. 



From a comprehensive detail discussion of 

 market conditions in Germany during the 

 Prices year 191 1 by Laris, we quote a few price 



in data of interest. The market in that year 



Germany was good. Long coniferous logs moved be- 



tween 18 and 19.7 cents per cubic foot for II 

 class, 1.5 cents to be added for I class, and as much to be de- 

 ducted for class III, and 3 cents for class IV. Squared timber 

 rose to 4% over the previous year; and since 1909 by 8 to 10.8%. 

 Oak, sawed, rose 7% over the previous year ; first class veneer 

 material, to be sure of extraordinary quality, bringing as high 

 as $3.37, but even second class material brings $1.85 to $3.16 

 per cubic foot — $262 per M feet ! 



Coniferous boards also rose generally in values, the better 

 qualities by 3.9% ; the lowest prices quoted were 21 cents per 



