UNITED STATES DEPARTMENT OF AGRICULTURE 
BULLETIN No. 894 
Contribution from the Forest Service 
WILLIAM B. GREELEY, Forester 
Washington, D. C. 
PROFESSIONAL PAPER 
October 18, 1920 
MANUAL OF DESIGN AND 
INSTALLATION OF FOREST SERVICE 
WATER SPRAY DRY KILN 
By 
L. V. TEESDALE, Engineer in Forest Products 
CONTENTS 
Page 
The Water-Spray Kiln . 1 
Kiln Construction Material 10 
Details of Construction ....... 11 
Heating Installation 16 
Water Supply . . . 31 
Page 
Condenser Coil 44 
Control Instruments 45 
Some Points to be Emphasized in Speci- 
fications 46 
If 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1920 
