152 



CORSICA 



(43,958 quarts) of resin or 2.2 liters (2.3 quarts) per tree 

 (Landes average 2 liters (2.1 quarts) per tree), while 6000 

 trees yielded 0.32 of a liter (0.34 of a quart) per tree, giving 

 an average of 1.75 liters (1.8 quarts) per tree. In 1911 the aver- 

 age was 1.78 liters (1.9 quarts) per tree. Taking a price of 115 

 francs ($22.19) per barrel of 340 liters (359 quarts) (average 

 price in the Landes for 1910) the gross yield of this Zonza sale 



should be X 115 francs ($22.19) cost f 45 francs 



($8.68) per barrel = 5760 francs ($1111.68). 



The same methods that are applied in the Landes for mari- 

 time pine are followed in Corsica, 55 except that the width and 

 length of the faces has been varied to a small extent as follows: 



TABLE 22. 5-YEAR PERIOD, 5 * ZONZA FOREST, 1909-1913 



Faces in centimetres and inches. 



TABLE 23. 4-YEAR PERIOD," ZONZA FOREST, 1912-1915 



Faces in centimetres and inches. 



55 The bar should be as wide as the face for tapping alive. The faces should be 

 placed first on the north, then west, then south, then on the east side of the tree. 



56 Office records of conservator. 



57 Vente d'une Coupe de bois avec extraction de resine, approved Jan. 30, 1912, 



