104 



FORESTS, FOREST LANDS AND FOREST PRODLXTS. 



that in the cups should have been higher, since the dip turpentine 

 collected from first-year boxes is usually classed as yellow dip for 

 the last dippings of the season. 



It is expected that these experiments will be continued next season 

 (1895) on a larger and even commercial scale to make a further test 

 of their adaptability. This will include a test of the cheapest and 

 most serviceable collecting cups, the best breadth to make the faces, 

 and a trial of different materials for making gutters to ascertain 

 their durability and strength. The use of materials with mini- 

 mum cost and maximum utility will of course determine the com- 

 mercial practicability of the s^^stem and it is these subjects which 

 it is hoped will be thoroughly investigated during the next year. 



The incomplete results from another experimental trial, in which 

 the cups, on first-year faces, were, at the middle of the season, 

 moved up so as to be at the top of the face which had so far been 

 cut, show a gain in the number of pounds of dip collected even 

 larger than that obtained in the preceding trial. As no scrape was 

 collected in this trial, from a misunderstanding with the person in 

 charge, the weight of the scrape cannot be included. It can be 

 said, however, that there was a large difference in the amount of 

 scrape on the two sets of faces, much the larger amount of scrape 

 having settled on the faces with boxes. 



There were twelve faces in each set, the arrangements being- 

 similar to those stated in the above experiment, except that these 

 faces were broader — from 7 to 7 J inches — and instead of the faces 

 being cut in pairs, one of each kind, they were placed two on each 

 tree without regard to their aspect. The net weight of the tur- 

 pentine collected from the twelve boxes was 50J pounds, and the 

 weight of that collected from the cups was 59 pounds, which gives 

 a net yield in favor of the cups of pounds, or a gain of over 

 16 per cent. Xo difference in the grades was noticed in the tur- 

 pentine, both being classed as virgin dip. 



COST OF ADOPTING THE FRENCH SYSTEM. 



The cost of the change from the old French method to the mod- 

 ern Hugues system was stated by Desnoyers (chief forest guard of 

 the national forests of France) to be about one cent a year for each 



