Periodical Literature 119 



8. Temperature of Kilns: 

 13 firms, 150 to 180". 

 59 firms, 180 to 210°. 



11 firms, 210 to 240". 



9. Practically all use live steam. 



10. Steam pressure in kilns : 



8 firms, 50 to 80 pounds. 

 68 firms, 80 to 1 10 poimds. 



12 firms, 110 to 140 poimds. 



1 1 . Recording steam gauges : 



Fifty firms use them and ninety-two do not. 



12. Recording thermometers : 



Ninety-one firms use them and forty-nine do not. 



13. No pine plants steam or wet lumber when put in kiln. 



14. After leaving kiln pine lumber is left in air 12 hours or more 

 before machining, by practically all firms. 



O. L. S. 



The Timberman for August, 1914, pub- 



Electric Drive lishes a two-page article summarizing the 



for advantages of an electric drive for sawmill 



Sawmill and comparing electric and line shaft drives. 



Several specific cases are analyzed and the 



advantages shown in costs of installment and upkeep, and in 



waste of power and time. The conclusion reached is that where 



any considerable amount of timber is to be cut, a thorough analysis 



of the case will show that proper electrical equipment will give a 



substantial return on the capital required to electrify. 



O. L. S. 



At Everett, Washington, a shingle mill, 

 Electric Drive eqmpped with ten upright machines capable 

 Shingle Mill of cutting 400,000 pieces per day, is electri- 

 cally driven throughout. This is the only 

 mill of its kind known to exist. 



0. L. S. 

 West Coast Lumberman, August, 1914. 



