. Bulletin. 20 30 _40 50 J 10 20 30 40 50 MINUTES AND HOURS 10 20 30 40 50 Fig. 18.—Graphic log, test 4. 36 TESTS OF RUN-OF-MINE AND BRIQUETTED 10 20 30 40 50 | 10 ZO 3C 40 50 2 MINUTES AND HOURS Fig. 19.—Graphic log, test 5. 20 30 40 so 3 210200 190 z a in X z 3 o1 or r>intf) u cr 6 HI 8 58075 hDZ cc UJ ; zot- o> E 80007000 Q z O a _j _i CL tr< 1 a _i Q Soeooo 50004000 a:u COLI JTIONS >—i )—( ) <& 3000200C1000 100005000 ?j£- ^ i 0 0 1 o : 0 o : 0 1 __ 0 l o . 0 o : o MINUTES AND HOURS Fig. 20.—Graphic log, test 6. LOCOMOTIVE TESTS. 37

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