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Phose io Ground <br />Phose to Phose Confoct <br />Contort ~- 44" ~ <br />RECEIVED <br />AUG 2 6 1931 <br />1 ~, <br />LAND RECLAMATION ~ COAL I ~' <br />MINED URCES ~ ~ <br />COLD DEPT. OF NATU0.AL 0.J0 , ~' I / <br />i <br />L <br />., iii ~ ~ ~! <br />L -_-- -- _ I - 1 ~/~ -- ~, <br />.G-' <br />~» j ~f° <br />... ~. <br />\~~\ <br />Use V~OOd <br />Braces <br />I <br />R~FE~ENCE <br />F: c_R BULLETIN 61-10 ~--~ SOLUTION <br />FIGUFCS 667 <br />_~~ <br />L 1. r ~ _ : I n <br />I <br />NE UTP,4L ~ ~ <br />\\ <br />I <br />~~- n"7 rl'1 t <br />f hliD~ Fll~l <br />