SERVICE ORDER 136. 



(Amends Service Order No. 106.) 

 Reference Key for Correspondence. 



MAY 4, 1907. 



Hereafter each letter written from the Forest Service in Washington to a member 

 in the field will bear in the upper left-hand corner a typewritten initial or initials to 

 designate the Branch or the Office in which it is written. Forest officers in charge 

 of the National Forests, and other members of the Service away from Washington, 

 should address all Service letters to The Forester, Forest Service, Washington, D. C., 

 and refer to the key initial or initials on the letter answered, and its date. The 

 following key will be used: 



"F" The Forester; " AF " Associate Forester; "L" Law; "I" Information; 

 "D" Dendrology. 



"S" Silviculture; " SE" Extension; "SS"Silvics; " M " Management, 



"P" Products; " PU " Wood Utilization; "PWP" Wood Preservation; " PP " 

 Publication. 



"G" Grazing; "GO" Control; " GD " Development; " GP" Permits. 



"O" Operation; " OM " Maintenance; "OA" Accounts; " OO" Organization; 

 'OE" Engineering; "OL" Lands; "OT" Purchase; "OS" Supplies; "OP" Pho- 

 tography; "OR" Record; "OB" Boundaries; "OH" Settlement; " OC " Claims; 

 "OU" Special Uses. 



OVERTON W. PRICE, Associate Forester. 



(43) 



