PERIODICAL LITERATURE 695 



UTILIZATION, MARKET, AND TECHNOLOGY 



keicrs Uj Jluxie"s advocating of spraying pulp 



IVood Prcscrva- log piles to prevent fire and gives results of 



tion and Fire observations upon the piles sprayed by one com- 



Prevention pany. The chief results were: (Ij Unsprayed 



wood from the top of the pile contained less 



moisture the smaller the logs, but the smaller logs become saturated 



with water sooner when sprayed; (2) the wood in the lowest part of 



the pile is moister than that in the upper parts and that the nearest the 



ground wettest of all; (3) when the logs are sprayed continuously they 



are found to contain 53-60 per cent of water based on the total weight 



of the wet log (108-150 per cent calculated upon the oven dry weight 



of the log; (4) in no case did any of the logs under the spray from 



the nozzles used, dry out; (5) the spray had apparently soaked the 



wood to the bottom of the pile (70-75 feet) ; (6) wet logs were moldy, 



but sound. 



W. H. S. 



Sutermeister, E- Spraying Wood jar Preservation and Fire Prevention. 

 Paper. Dec. 22, 1920, pp. 21 and 30. 



Describing the method of insulating a New 

 To Prevent Decay England cotton mill roof to prevent decay and 

 and Sweating sweating. Seven-eighths-inch pine boards were 

 treated in an open out-of-door concrete tank for 

 20 hours in creosote at a temperature of 200 degrees F. and an absorp- 

 tion of pounds per cubic foot obtained. The boards were applied to 

 the old roof without removing the slag with a seven-eighths-inch air 

 space between the slag and the treated stock. 



W. H. S. 



Hoxie, F'. J. Treated Lumber for Insulating Roofs of Moist Factories. Paper 

 given at 17th .'Knn. Meet. Amer. Wood Preservers' Assoc, Jan., 1921, and printed 

 later. 



A contribution to the discussion of the feasi- 



Sprayiny Log hility of spraying log-piles for the prevention of 



Piles fire, bearing upon the effect of this spraying upon 



decay. Muench's data are cited and experiments 



of the writer upon five fungi. It is shown that the moisture-decay 



curve varies inversely with the specific gravity of the wood. Sixty per 



