Rbsults of Experiment to ascertain the Rksistance to Deflection and Ruptiire under a gradually increased Bfnding Stress of One Log of Blue Gum, 



received prom messrs. richardson & co. 



Load applied at centre. Distance between supporta, 10' 0". 



lU-ceiwd 21 feet Imtg. 



lllue Oum Log, 0- x S* (tawn) ... 

 Skftcfi shoirmg gram of wood 



■ 



Tutal Stress In Pounds. — Deflectinn Inch i 



3d,US n-6 



Initial stress, 4000 lbs. (S = 1623. Average E = 2.(i6G.M0.— A. O.G.) 



Re.<<ULTS op VJ-XPERIMEN'T to ascertain the RES1ST.\NCE TO DEPRES.'ilON AND RUPTDRE UNDER A GRADUALLY INCREASED THRUSTING STRESS 



Length for tesliug, 120 Indies. Ends faced accurately true in lathe. 



T<»tal Stress in Pdunds. — Depression Inch i 



Ultimate Stress. 



'. S. PEiESOH i Son, 10, Vic 



DAVID KIRKALDY & SON. 99, Sonthwark-alreet, London, I 

 2l8t July, 1899. 



