170 



Forestry Quarterly. 



Table I shows the results of the estimate. The percentages 

 of error have been worked out for each species, for each lot 

 and for the totals. 



Table i. 



PLUMAS AREA. 



Comparison of Bstimates. 



5% Estimate. 

 First. 



5% Estimate. 

 Second. 



10% Estimate. 

 Average. 



^ o 



u 



m « 



u 



o 

 h4 



Species. 



Yellow Pine 

 Douglas Fir 

 Sugar Pine 

 Incense Cedar 

 White Fir 

 Total 



Yellow Pine 

 Douglas Fir 

 Sugar Pine 

 Incense Cedar 

 White Fir 

 Total 



Yellow Pine 

 Douglas Fir 

 Sugar Pine 

 Incense Cedar 

 White Fir 

 Total 



;3"5 



a 



o 

 718,521 



304.545 



278,287 



73,120 



8,436 



1,382,909 



1,100,615 



832,897 



389,545 



134,849 



5,244 



2,463,150 



1,262,095 



1,431,463 



646,234 



325,872 



63,879 



3,729,543 



ti. 



oq 



584,800 



171,000 



190,000 



13,200 



—19 

 —44 

 —32 

 —82 



li. 



cq 



550,200 

 628,200 

 294,800 

 24,800 

 148,800 



1,150,400 

 693,400 

 339,600 

 107,400 



2,290,800 



987,700 



1,515,600 



628,000 



364,000 



106 



6 

 —66 



959,000 — 31 1,646,800 19 



5 980,600 — 1 1 



-17 926,000 II 



-13 201,200 — 48 



-21 96,000 — 41 



567,500 



399,600 



242,400 



19,000 



74,400 



1,302,900 



-22 



6 



- 3 

 12 



902,800 



798,000 



1,081,400 



267,800 



—28 



—44 



67 



—17 



— 21 



31 



—13 



—74 

 — 6 



1,065,500 — 3 



809,700 — 3 



270,400 — 31 



101,700 — 25 



7 2,203,800 — 10 2,247,300 — 9 



945,250 —25 



1,156,800 — 19 



854,700 32 



315,900 — 3 



3,495,300 — 6 3,050,000 —18 3,272,650 —12 



o 



Yellow Pine 

 Douglas Fir 

 Sugar Pine 

 Incense Cedar 

 White Fir 

 Total 



1,467,544 



1,219,173 



73^,322 



304,945 



149,937 



3,872,971 



1,311,200 



749,800 



836,800 



257,000 



15,200 



3,170,000 



— II 



-38 



15 



—13 



1,420,000 

 832,000 



1,294,600 

 146,800 

 28,200 



3,721,600 



— 3 

 —32 



77 

 —45 



— 4 



1,365,600 

 790,900 



1,065,700 



201,900 



21,700 



3,445,800 



— 7 



—35 



46 



—29 



-II 





Yellow Pine 

 Douglas Fir 

 Sugar Pine 

 Incense Cedar 

 White Fir 

 Total 



2,153,465 

 2,410.881 

 1,459,038 



389,843 



230,857 



6,644,084 



2,840,400 

 1,616,000 

 1,573,200 

 207,800 

 122,400 

 6,359,800 



30 



—33 



8 



—47 

 — 4 



2,541,600 

 2,260,200 

 1 ,872,200 

 240,800 

 364,600 

 7,279,400 



18 

 - 6 



28 

 38 



2,691,000 

 1,938,100 

 1,722,700 

 224,300 

 243,500 

 6,819,600 



24 

 20 



18 



—43 



3 % 



Yellow Pine 

 Douglas Fir 

 Sugar Pine 

 Incense Cedar 

 White Fir 

 Total 



6,702,240 

 6,198,959 

 3,504,426 

 1,228,629 



458,403 

 18,092,657 



6,874,500 



4,745,800 



3,567,600 



949,400 



137,600 



16,274,900 



3 6,395,200 

 23 5,444,400 



2 4,744,200 



23 776,200 



541,600 



ID 17,901,600 



- 4 

 -II 



40 

 -37 



6,634,850 



5,095,100 



4,155,900 



862,800 



339,600 



17,088,250 



— I 



—18 



19 



—30 



— 6 



