I 



sure thay were silvioulturally correct - to eliminate guoss 

 work and unreasoning precedent jxist t.s far es it was hjtoanly 

 possible. Accordingly two field parties were organized which 

 included the tost silvicultural talent in the Service - with 

 one of them was the forester himself. Before taking any 

 sample marlzingc on the Sierra Sugar Pine sale, the oldest 

 Government cuttings in the State were visited - some seven 

 years old - and the resulting forest studied. On some of 

 then it was plain that the marking was too heavy - on others 

 it v;as o.njally plain that the marking was too light - In 

 Doth oases without this study the methods used in these old 

 sales would hc.ve been considered perfectly good and would 

 have teen applied to the "dig new sales. 



To secure yellow pine reproduction recuires a lot 

 of unotstructed ligit . These studies brought this out very 

 plainly. Therefore, the sample Bar!:incs made afterwerd shaded 

 out of the selection system toward the group system. _n open 

 stand of mature seed trees in the rev. and white fir type will 

 not teep down the hrush, or guarantee the future of the for- 

 est. Therefore, again in the sample markings the group sys- 

 tem rathor than the selection systen >7as followed in the high 



fir type. 



Another thing was learned in this Halting study - 



T7ith the application of the forester's formula to stoipage 

 appraisals, the r eroenta e of species ia en important factor. 



7 



