CONTENTS 
Page Page. 
SLURS (AC AU js aa Rae DES eens Exp aa aie 1 | Damages to watersheds ..............------- 44 
Fire history of the California pine region... 3 Voight burning’! 273.5 S25 ee Bo ee 
Mats LLOnvsiTe SCATSLAo 9522 eke 3 Technique. 22203 2 ee Bele a ee ee 
Recurrence of fire years._-_.--.--..----- 4 History of growth and practice.........- 
Causes of Senliesh RECs 2. yt 2. See ee oo 5 Results of light burning -.---,----....... 
Miresin the virgin Loreste. | eee sees eS 5 With maximum protection—Lassen 
Peary iron. fire Scarses 22 rae Se be 5 County 42 S2gesiruk 2 oo es Se ae 
Hormation Of Scars. 2.5) 2s Ss 5 Infiuence of topography—Sierra 
Susceptibility of various species_-_-_- vi COnnEY 85.280 ors aera ee ee 
Burning down of scarred trees_--_---- 8 Detailed studies of hazard reduction— 
Direct loss of wood and reduction in Shasta and Siskiyou Counties__.__. 
PERO Vaya at aioe cay AL emis 2 bs Lh) alee gee 10 Repeated light burns—Nevada and 
iPiTreop ment Killing seo sae Wy il Plamas Countiess 2 Pee ee 
Controlling factors) {e242 2842) Were 3 12 Use in insect control—Siskiyou 
Prevalence of heat killing._-__.-._..- IB oe  OOUREY. Le Daa a ee UL” eee 
County 
Summary oflight burning observations__ 
Susceptibility of various species---- 13 
Relation to site quality--.....--.---- 14 Difficulties of operation ___________- i 
Crown injuries and growth rate-__------ 15 Resultant hazard reduction__-_...__ 
Effect of crown injuries on growth_- 15 Indirect cost in damage incurred _.__ 
Wontrotling factorsse 204) 7 Pe a 17 Counting the direct cost--.-._---._- ts 
Effect on various species__-_----- --- 17 | Possible beneficial uses of fire__.-..-.----.-_- 
Indirect physical damage to mature tim- Use in'slash disposal 22022) {222 eee 
PE SES Tope calles Wectact SQ 00S Ba A I i ee 18 Broadcast: Durning ¢e2-t 22 ers eee 
(PHSBE RAINE ENE ys Ue 18 Burning in place___--.-_- Fe ee 
Comparative losses on burned Pring and ‘burning 2-25.02) ~ eee 
and unburned areas-_-_-__------ 20 Use in other protective Measures-_---_-.- 
Why inseet attacks follow fires > "S81 Removal of risk.) oes ea ae ee 
LE Fay ey RU a hcg Spee eae Ar en ea 22 Construction of fire lines___._-_.__-- 
Decay in white fir___-_------- POPS, tae Cleaning of barriers --.....-.-.------ 
Decay in incense cedar-------- 22 Disposal of snags and down logs ____ 
Fire damage to young growth_-_--_---_---- 24 Use in silvicultural practice_.___.._-__--_ 
Functions of advance reproduction-- 25 Releasing re production______--.--__- 
POLLO OF F110 2.) ) 7 EE 25 pe Ye Bee a 25 Controlling com position -_______--- a 
Rare instances of beneficial effects_- 26 | Preparing ground for planting____-- 
Relative susceptibility of various : Use as‘an aid in grazing_.__......_._--_ 
Sy LG SRL a OS) a eee se ihren? Si 27 | The relation of damage to forest manage- 
Effect on forest com position-_-_--_- Lbs beng: TNONE Ce ee A A eae ee ee 
Pie otpeess af apirition.. 5. o20. 282022" 29 Effects on logging costs.._.-------------- 
Fire in second-growth stands-_-_-_--.--------- Sh el Effects on silvicultural practice---------- 
The crown-fire hazard__._.--.----------- 31 Theory of fire protection as controlled by 
eA mination OL stands: ol succes 33 fire damages ic) 2a Oke et a ee 
Effect of repeated surface fires....------ 34 The minimum cost theory---.-------- 
» Other forms of fire damage_-_-_----------- 36 The minimum damage theory------- 
Occasional benefits-_-_.----------- fe ae 30° 4 Bhomimeainy 322) oe Sah ee a ee 
Fire damage on cut-over areas_.-.----------- 36) Literature Cli0d ...2crecsecet ccessawossevenie 
Effects of slash fires.......--.=--..------- a ad 
Effect on reproducing areas___---------- 38 
ACIP DISH melds) kee eo. Loe ue 39 
Site deterioration--....-.-.------------- 39 
Reclaiming the brush fields........----- _ 4i 
