308 FEATURES OF FRENCH NATIONAL FOREST ADMINISTRATION 



In other words 100 cubic meters of logs are equal to 78 cubic meters of 

 logs squared according to the j rule, or 54 cubic meters by the | rule. 

 Inspector Montrichard has invented a shde rule by which can be read the 

 contents of a log (a) grume, (h) au |, (c) au ^, or (d) au I of known 

 diameter or circumference and length. The principle of a comparison of 

 log rules by the use of a slide rule has wide application in the United 

 States. 



There are frequent misunderstandings, however, because in one lo- 

 cality logs are sold round (or " au reel ") while elsewhere the prices quoted 

 are for squared timber '^au carree," and because of different methods of 

 measurements (see p. 207). Thus to speak of French stumpage rates in 

 exact terms it would be necessary to give at least the data enumerated 

 below; obviously in general averages such minute data are out of the 

 question: (1) Region (and forest), (2) haul, (3) species, (4) kind of fell- 

 ing (and area to be cut over), (5) charges, (6) size of trees, (7) per cent 

 (a) saw timber and (b) cordwood. 



The forests of the Vosges, Jura, and Savoie are comparable to the 

 coniferous forests of Vermont and northern New Hampshire except that 

 (1) the road system in French forests is already constructed and logging 

 is therefore that much cheaper, (2) the cutting removes a smaller per- 

 centage of the stand, and (3) there is a better market and therefore more 

 competition for the stumpage. To secure an exact line on French stump- 

 age rates on timber in these fir-spruce forests logs were scaled on timber 

 sales in 1912, resulting as follows: 



(a) In a good stand of silver fir (final felling) 1.1 miles haul to tramway and 10.5 

 miles from Pontarlier, ten logs averaging 16 inches d. i. b. and 13| feet in length sold 

 for 28 francs per cubic meter; 6.6 cubic meters sold for $36; the scale of these logs by 

 the Scribner Decimal C rule amounted to 1,350 board feet or $26 per thousand feet 

 board measure on the stump. Adding 5 per cent for all charges the rate is $27.30 per 

 thousand feet board measure. 



(b) In the forest of Gerardmer with a wagon haul of 3 to 4 miles to a broad-gauge 

 station three-fourths spruce and one-fourth fir (intermediate fellings) brought only 18 

 francs per cubic meter. The sale of a representative mmiber of logs (averaging 6 to 

 11 inches d. i. b.) by the Scribner Decimal C rule netted $21.40 per thousand; which 

 increased 5 per cent for charges is $22.47 per thousand feet board measure. In other 



