﻿THE 
  AUTHORS 
  

  

  ALAN 
  W. 
  GREEN 
  joined 
  the 
  U.S. 
  Forest 
  

   Service 
  in 
  1955 
  as 
  a 
  Research 
  Forester 
  in 
  silvi- 
  

   culture 
  and 
  regeneration 
  at 
  the 
  Central 
  States 
  

   Station 
  office 
  in 
  Carbondale, 
  Illinois. 
  Three 
  

   years 
  later 
  he 
  was 
  transferred 
  to 
  Iowa, 
  where 
  

   he 
  was 
  Superintendent 
  of 
  the 
  Amana 
  Experi- 
  

   mental 
  Forest. 
  In 
  1961 
  he 
  was 
  reassigned 
  to 
  

   Foreign 
  Forestry 
  Services 
  in 
  the 
  Washington 
  

   Office. 
  In 
  1964 
  he 
  joined 
  the 
  Timber 
  Produc- 
  

   tion 
  Economics 
  project 
  at 
  Intermountain 
  Sta- 
  

   tion 
  in 
  Ogden. 
  He 
  holds 
  both 
  bachelor 
  and 
  

   master 
  of 
  science 
  degrees 
  in 
  forestry 
  from 
  

   Purdue 
  University. 
  

  

  JACK 
  R. 
  ALLEY 
  is 
  Chief 
  of 
  the 
  Branch 
  of 
  

   Timber 
  Management 
  Planning 
  in 
  the 
  U.S. 
  

   Forest 
  Service 
  Regional 
  Office 
  in 
  Missoula, 
  

   Montana. 
  A 
  1940 
  graduate 
  of 
  the 
  University 
  

   of 
  Idaho, 
  he 
  joined 
  the 
  Forest 
  Service 
  in 
  

   1946. 
  His 
  career 
  has 
  included 
  assignments 
  as 
  

   Assistant 
  Ranger 
  and 
  District 
  Ranger 
  on 
  the 
  

   Colville, 
  Flathead, 
  Nezperce, 
  and 
  Clearwater 
  

   National 
  Forests. 
  In 
  1958 
  he 
  joined 
  the 
  valu- 
  

   ation 
  section 
  of 
  the 
  Timber 
  Management 
  

   Branch 
  in 
  Missoula, 
  and 
  he 
  later 
  served 
  the 
  

   Regional 
  Office 
  in 
  Ogden 
  in 
  a 
  similar 
  capacity. 
  

   Until 
  1966 
  he 
  was 
  a 
  special 
  cooperator 
  with 
  

   the 
  Intermountain 
  Forest 
  and 
  Range 
  Experi- 
  

   ment 
  Station 
  in 
  a 
  study 
  of 
  the 
  management 
  

   of 
  white 
  pine 
  lands 
  in 
  the 
  Northern 
  Rocky 
  

   Mountains. 
  

  

  ii 
  

  

  