sale and ono to sralo and close. Those two trips are al- 

 ways necessary, whether tho salo is "by estimate or other- 

 wise, so that if a third trip oan "bo eliminated, a sale "by 

 estimate has so many disadvantages, it would "bo impractical 

 to put it in operation. 



^Discussion. 



10:20 - Yaluo in Relation tc Cost of Forest Dose- ipt ions 

 end Kaps in Glass A and B Sales, 



JOY3S : 



Maps and descriptions of practically no value in 



Glass A salos and should "be olininatod* 



In Class B salos they should "bo cut out nr required 

 at tho discretion of tho Supervisor* 



Ahcve conclusions "based on consideration of ole- 

 nonts of valuo in maps and descriptions generally. Chief 

 value to provide data to determine: 



(a) Advisability of naking tho salo 



("b) Logci^S cc-sts, proper ctunpago rates, etc. 



(o) Ano-unt of timber which ecu "bo out. 



(d) Marking principles applicable. 



(o) Typo nap to g iVQ noro graphic representation 



of the otonl. 



In Class B sales, conditions vary, mating descrip- 



tions and map sonotimeo valuable, comotincs not. 



(a) In tho majority of ordinary Class B sales, they 



112 



