CUBIC MEASURE. 



55 



Table 7. — Square Timber Cut from Round Logs — Continued. 

 Inscribed Square Rule — Continued. 



Length 

 in feet. 



AVERAGE DIAMETER IN INCHES. 



15 



16 



17 



18 



19 



20 



21 



22 



CONTENTS IN CUBIC FEET. 



if 10 . . . 



^ 12... 



7.3 



8.9 



10.0 



11.3 



12.5 



13.9 



15.3 



16.8 



8.8 



10.7 



12.0 



13.5 



15.0 



16.7 



18.4 



20.1 



_ 14 . . . 



10.2 



12.4 



14.1 



15.8 



17.5 



19.4 



21.4 



23.5 



16 . . . 



11.7 



14.2 



16.1 



18.0 



20.0 



22.2 



24.5 



26.9 



18 . . . 



13.2 



16.0 



18.1 



20.3 



22.3 



25.0 



27. 6 



30.2 



20... 



14.6 



17.8 



20.1 



22.5 



25.1 



27.8 



30.6 



33.6 



22 . . . 



16.1 



19.5 



22.1 



24.8 



27.6 



30.1 



33.7 



37.0 



24 . . . 



17.5 



21. 3 



24.1 



27.0 



30.1 



33.3 



36.7 



40.3 



26 . - - 



19.0 



23.1 



26.1 



29.3 



32.6 



36.1 



39.8 



43.7 



: 28 . . . 



20.5 



24.9 



28.1 



31.5 



35.1 



38.9 



42.9 



47.0 



30 . . . 



22.0 



26.6 



30.1 



33.8 



37.6 



41.7 



45.9 



50.4 



32 . . . 



23.4 



28.4 



32.1 



36.0 



40.1 



44.4 



49.0 



53.8 



34 . . . 



24.9 



30.2 



34.1 



38.3 



42.6 



47.2 



52.1 



57.1 



36 . . . 



26.3 



32.0 



36.1 



40.2 



45.1 



50.0 



55.1 



60.5 



: 38... 



27.8 



33.7 



38.2 



42.8 



47.6 



52.8 



58.2 



63.8 



40... 



29.2 



35.6 



40.2 



45.0 



50.1 



55.6 



61.2 



67.2 



> 42... 



30.7 



37.3 



42.2 



47.3 



52.6 



58.3 



64.3 



70.6 



44 . . . 



32.2 



39.1 



44.2 



49.5 



55.1 



61.1 



67.4 



73.9 



46 . . . 



33.6 



40.8 



46.2 



51.8 



57.6 



63,9 



70.4 



77.3 



. A 48 . . . 



35.1 



42.6 



48.2 



54.0 



60.1 



66.7 



73.5 



80.6 



•♦ 50 . . . 



36.6 



44.4 



50.2 



56.3 



62.7 



69.5 



76.6 



84.0 



52 . . . 



38.0 



46.2 



52.2 



58.5 



65.2 



72.2 



79.6 



87.4 



^ 54 . . . 



39.5 



48.0 



54.2 



60.8 



67.7 



75.0 



82.7 



90.7 



56 . . . 



41.0 



49.7 



56.2 



63.0 



70.2 



77.8 



85.7 



94.1 



, 58 . . . 



42.4 



51.5 



58.2 



65.3 



72.7 



80.6 



88.8 



97.4 



60... 



43.9 



53.3 



60.2 



67.5 



75.2 



83.3 



91.9 



100.8 



62 . . . 



45.3 



55.1 



62.3 



69.8 



77.7 



86.1 



94.9 



104.2 



64... 



46.8 



56.8 



64.3 



72.0 



80.2 



89.9 



98.0 



107.5 



66... 



48.2 



58.0 



66.3 



74.3 



82.7 



91.7 



101.0 



110.9 



68... 



49.7 



60.4 



68.3 



76.5 



85.2 



94.5 



104.1 



114.2 



70... 



51.2 



62.2 



70.3 



78.8 



87.7 



97.2 



107.2 



117.6 



72... 



52.6 



63.9 



72.3 



81.0 



90.2 



100.0 



110.2 



121.0 



74 . . . 



54.1 



65.7 



74.3 



83.3 



92.7 



102.8 



113.3 



124.3 



76 . . . 



55.6 



67.5 



76.3 



85.5 



95.2 



105.6 



116.4 



127.7 



