TIMBEB PHYSICS — SIZE OP TEST MATERIAL. 



361 



table.) To avoid any complications due to differeaces or changes in moisture, the tests on large and small beams 

 were performed the same day. 



Strength of large learns and of small beams, and of compression pieces cut from tliem. 

 [Usually 12 small beams cut from the uninjured part of each, large beam.] 



BUTT 



7\ 



6' 



S' 



lAffO£ 

 ££AM 



S' 



6" 



TOP 



SPL/T.S/HA/£0 



SAW£0.SPL/T 



~T\ 



2526 



2728 



J3 



/S 



/7 



/4 



/S 



/8 



/ 



2 



3 



<4 



S 



6 



7 



8 



3 



JO 



// 



/2 



/920 



2324- 



2/22 



2930 



3/32 



Kind of wood. 



Oak 



Shortleaf pine. 



White pine. 



Sbortleaf pine. 



Longleaf piue 



White pine. 



Shortleaf pine. 

 White pine — 



Number 

 oi beam. 



Strength, 

 of large 

 beams. 





Lbs per 





sq. %n. 



i 



7,400 



2 



5,880 



3 



(J,570 



4 



8,640 



5 



8,150 



6 



7,450 



8 



6,870 



9 



8,300 



10 



7,440 



11 



5,110 



12 



7,360 



13 



7,320 



14 



3,110 



15 



4,280 



10 



3,770 



17 



3,460 



38 



3,990 



19 



4,040 



20 



4,410 



21 



4,900 



22 



3,860 



23 



4,660 



24 



3,960 



25 



3,920 



26 



4,560 



27 



4,390 



28 



6,670 



29 



7.410 



30 



0, 600 



31 



5,750 



32 



6, 210 



33 



7,450 



34 



7,000 



35 



6,030 



36 



6, 520 



37 



7,030 



38 



7,710 



39 



8,090 



40 



7,680 



41 



7,330 



42 



7,290 



43 



8,850 



44 



8,040 



45 



8,090 



46 



7,620 



47 



6,710 



48 



8,480 



49 



5,630 



50 



4, 900 



51 



5,300 



52 



4,810 



53 



3,610 



54 



4,440 



55 



6,400 



56 



6,690 



57 



6,670 



58 



7,310 



101 



5,070 



102 



6,340 



103 



7,070 



104 



4,900 



105 



6,640 



106 



6,180 



107 



6,080 



108 



5, 510 



109 



6,930 



no 



5,930 



in 



4,010 



Average 

 strength 



Moisture. 



Compression, 

 endwise strength. 



of small 

 beams. 



Large 

 beams. 



Lbs. per 





sq. m. 



Per cent. 



8,560 



69.5 



8,660 



70.3 



6, 220 



75. 3 



8,800 



66.6 



7,710 



64.8 



6,910 



63.0 



6,890 



67.4 



7,950 



48.1 



7,250 



42.1 



6,760 



38.9 



6,930 



35.2 



7,300 



37.4 



3,560 



84.9 



4,340 



43.8 



4,590 



50.7 



3, 590 



60.0 



3,640 



42.8 



4,400 



62.4 



4,180 



53.6 



4,320 



50.1 



4, 320 



50.2 



4,890 



52.0 



4,440 



76.3 



4,410 



53.6 



6, 290 



31.2 



5,610 



33.9 



6,830 



28. 6 



7, 630 



28.6 



7,160 



28.3 



6,000 



34 3 



7,500 



26.4 



8, 390 



29 5 



7, 800 



28.4 



6,740 



28.8 



6, 890 



31.6 



7,890 



29.2 



8,510 



26.2 



8,210 



32 5 



7,980 



31.1 



8,230 



31.7 



8,740 



30.9 



9,720 



28.1 



8,870 



26.3 



8,850 



25.8 



7,670 



32.6 



7,610 



33.0 



8,300 



29.3 



6,250 



34.5 



5,020 



87.2 



5,210 



71.4 



4,470 



77.2 



3,610 



54.5 



4,720 



97.6 



7,630 



27.0 



6,880 



28.4 



6,990 



27.0 



7,490 



28.5 



7,200 



15.4 



6,890 



11.0 



8,750 



12.2 



6,680 



12.1 



6,890 



10 6 



7,650 



11.6 



6,090 



11.5 



5,810 



11.1 



7,300 



11.4 



6,010 



12.1 



5,040 



13.0 



Small 

 beams. 



Per cent. 

 68.5 

 69.0 

 75.2 

 67 6 

 65.8 

 66.6 

 70.5 

 57.7 

 56.3 

 33 3 

 33.5 

 40.6 

 83.6 

 41.2 

 50.5 

 48.6 

 43.0 

 60.4 

 51.8 

 51.0 

 60.8 

 58.2 

 71.5 

 60.5 

 30.5 

 36.0 

 28.9 

 29.0 

 28.9 

 35.5 

 27.2 

 30.1 

 29.5 

 29.4 

 31.6 

 29.9 

 25.4 

 31.9 

 32.3 

 31.5 

 31.2 

 28.9 

 26.9 

 25.4 

 33.9 

 33.4 

 29.3 

 33. 7 

 75.7 

 69.6 

 64.7 

 58.2 

 94.9 

 27.1 

 26,6 

 26.4 

 26.8 

 16.2 

 11.7 

 10.5 



O. a 



11.2 

 11.3 

 11.5 

 10.7 

 10.5 

 11.6 

 13.0 



Sawed 

 pieces. 



Lbs. per 

 sq. tn. 

 3,960 

 4,340 

 3,030 

 4,090 

 3,680 

 3,330 

 3,470 

 4,030 

 3,840 

 3,870 

 3, 890 

 4,090 

 2,440 

 2,710 

 2,660 

 2,410 

 2,800 

 2,760 

 2,680 

 3,010 

 2, 500 

 2,850 

 2,520 

 2,840 

 3,660 

 2,830 

 3,540 

 4,450 

 4,200 

 3,630 

 3,940 

 4, 350 

 4,070 

 3,810 

 4,320 

 4,380 

 4,500 

 4,550 

 4, 290 

 4,680 

 4,950 

 5,300 

 4,730 

 5,000 

 4,730 

 4,200 

 4,870 

 3,600 

 2,970 

 3,330 

 2,940 

 2,400 

 2,710 

 4,340 

 4,050 

 4,100 

 4,100 

 5,410 

 4,920 

 5,140 

 4,360 

 5,450 

 5,190 

 4,810 

 5,100 

 5,330 

 4,600 

 4,270 



Split 

 pieces. 



Lbs. per 

 sq.iti. 

 4,120 

 4,700 

 3,190 

 4,460 

 3,750 

 3,330 

 3,190 

 4,160 

 3,850 

 3,630 

 3,850 

 3,800 

 2, 500 

 2,840 

 2,760 

 2,570 

 2, 620 

 2,780 

 2,700 

 2,900 

 2,430 

 2,880 

 2,710 

 2,730 

 3,850 

 3, 110 

 3,590 

 4,250 

 4,190 

 3,530 

 4,050 

 4,220 

 4,120 

 3,640 

 4,370 

 4,920 

 4,610 

 4,670 

 4,380 

 4,820 

 5,120 

 5,440 

 5,070 

 5,050 

 4,830 

 4,520 

 4,890 

 3,630 

 3,200 

 3,240 

 3,100 

 2,550 

 2,900 

 4,500 

 4,210 

 4,340 

 4,030 

 5,720 

 5,520 

 5,760 

 4,700 

 5,310 

 5,420 

 5,170 

 4,710 

 5,080 

 4,670 

 4,390 



