Canadian Forvslri/ Journal, Maiclu 1!)17 



1027 



they know the anion nL of limber 

 accurately and the distance of haul- 

 ing to landings. 



Winter Survcij in X. B. 

 A Crown Land survey party con- 

 sisting of about fifteen men started 

 work again February first in the 

 vicinity of Pangburn on the Trans- 

 continental and will work towards 

 Moncton. They report good going 

 on snow shoes and in spite of cold 

 weather are living comfortably in 

 tents, hauling in supplies on hand 

 sleds or more properly, toboggans. 

 They will work until the spring break- 

 up which means about the middle of 

 April when they will come in again 

 until the regular summer field work 

 season. 



"HAMMERFEST"OF FORESTERS 



The annual "Hammerfest" was 

 held at the forestry camp of the 

 University of New Brunswick on the 

 evening of January 26th, under ideal 

 winter conditions and an attendance 

 of about 22 men. Among the guests 

 were Priovncial Forester Caverhill 

 and some of his office staff, Prince, 

 Brewer, Melrose, Maxwell, Leland T. 

 Webb, Edwin Hall and Colby Jones, 

 of the class of 191(3 who were in the 

 city at the time, and Mr. McAllister 

 of the Engineers of the University to 

 represent that department. Two 

 members of the Ninth Heavy Siege 

 Battery were also on leave for the 

 night, Lee Kilburn and Glenn Mow- 

 att. Good fellowship prevailed and 

 the usual toast list carried out after 

 a sumptuous feast prepared by the 

 "Grub" Committee whose efforts were 

 duly appreciated. Every man is be- 

 hind Mr. Caverhill in the forest 

 survey now being carried out under 

 his direction for the Department of 

 Lands and Mines and the meeting 

 was full of the spirit of optimism and 

 co-operation. 



PROCESS TO UTILIZE 

 MILL WASTE 

 Dr. J. G. Davidson, of the Uni- 

 versity of British Columbia, in co- 

 operation with Lloyd L. Davis, of the 

 department of industrial chemistry 



of the University of Washington, has 

 discovered a process of distilling saw- 

 mill waste whereby it is believed that 

 thousands of dollars now lost will be 

 saved. 



By means of this process tar, a light 

 oil, acetate of lime, and charcoal are 

 formed. The gas produced "by dis- 

 tillation is carried through a pipe nine 

 inches in diameter and twenty feet 

 long. In this pipe is an electrically 

 charged wire, which causes precipita- 

 tion of the heavy particles of tar. 

 The tar, forty gallons for each cord of 

 wood distilled, is of medium consis- 

 tency, and immediately marketable. 

 The light oil, obtained in a water 

 condenser, is immediately marketable 

 for use in ore refining, and the yield 

 is twelve gallons to the cord of wood. 

 Eighty pounds of acetate of lime are 

 obtained from the pyroligneous acid 

 of each cord of wood. Nine hundred 

 pounds of charcoal are the final yield. 



Dr. Davidson has been working on 

 the problem of simplifying the dis- 

 tilling of wood and coal by the process 

 indicated above for over two years. 

 The greater part of the work has been 

 done in the Vancouver gas plant and 

 the Tacoma gas works, and the facts 

 discovered in these two plants were 

 utilized last summer in a series of ex- 

 perimental runs lasting for about a 

 month in the wood distillation plant 

 belonging to the United States Forest 

 Service and the University of Wash- 

 ington at Seattle. Mr. Davis, a 

 senior student of that university, 

 made the analysis of the products. 

 Arrangements are now being made to 

 test out the process in connection with 

 the carbonizing of coal under con- 

 ditions which give the volatile pro- 

 ducts as tar and light oils with a 

 minimum of coal gas. It is expected 

 that this will complete the experimen- 

 tal and demonstration work which is 

 considered desirable. 



^'SENSIBLE FIRE PRECAUTIONS" 



(Manitoba Free Press Editorial, 

 Feb. 22nd, 1917.) 



The terrible disaster last year in 

 Northern Ontario, involving the 

 loss of 264 lives and the destruction 

 of 800,000 acres of forest by fire. 



