12 



A MILL SCALE STUDY OF WESTERN YELLOW PINE. 



PARTY AND EQUIPMENT. 



The party organization and necessary equipment of the men is shown 

 as follows : 



One member of party with each crew, and 

 equipped as follows : 50-inch tree calipers ; 100- 

 foot steel tape ; blue lumber crayon ; sharp knife 

 and pad of blank forms the same as shown in 

 Plate II. 



Two 



falling' 



crews 



In the 

 woods 



At 

 the 

 mill 



j Two 



I bunching 



[ teams 



Stationed 

 at log 

 deck 



Stationed 

 at edgrer 



Stationed 

 at grading 

 table 



Two members of party with each bunching 

 team, and equipped as follows: 36-inch measur- 

 ing stick divided into inches and tenths of inches ; 

 50-foot steel tape; one-foot steel stem anatysis 

 scale divided into inches and tenths on the one 

 edge, and into inches and twentieths on the other ; 

 blue lumber crayon, and two pads of blank forms 

 as shown in Plates II and III, one for recording 

 stem analysis data, and the other for recording 

 log measurements. 



Company's log sealer, who recorded on sepa- 

 rate pad the volume in board feet, as shown by 

 the Spaulding Log Scale, of each marked log 

 sent up the log chute to be milled. 



One member of party equipped with blue lum- 

 ber crayon for marking first and last board from 

 each marked log, and blank pad for recording 

 timbers, if any, sawed from them. 



One member of party equipped with pad of 

 blank forms as shown in Plates IV to X, who 

 recorded the volume and grade of lumber from 

 each marked log as called off to him by the com- 

 pany's grader as he entered same on his tally 

 sheet. 



The mill was operated with day and night shifts, therefore two mem- 

 bers of the party were required to do night work, thus making four men 

 in all stationed at the mill. 



METHOD OF PROCEDURE. 



In the Woods. 

 Identification. 



The men stationed with the falling crews identified all trees to be 

 included in the study before they were felled. All trees included were 

 western yellow pine, but of two varieties known locally as typical yellow 

 pine and bull pine, or blackjack. The identification of each tree was 

 exactly the same as would have been made by the lumbermen of the 

 locality ; the determining characteristics being based on general outward 

 appearances, mostly on color, and texture of bark. Trees identified as 



