422 



Intelligence and Miscellaneous Articles. 

 Table II. 





Rod 1. 



Rod 2. 



Rod 3. 



Rod 4. 



Crude 



1-0000 

 1-0095 

 10047 

 10027 

 0-9997 



10000 

 10080 

 10035 

 10024 

 0-9995 



10000 

 10057 

 10021 

 10010 

 1-9992 



1-0000 

 10077 

 10036 

 10026 

 1-9999 



Hardened 



Tempered yellow 



, , blue 



Grey 





Six rods, each two of which were cut from the same rod. The 

 length amounts to 100 millims. ; the thicknesses 4-2, 2*65, and 2-55 

 millims. respectively. In Table III. are added also the specific 

 gravities assumed by the rods when (after the conclusion of the 

 other measurements) submitted to a bright red heat and afterwards 

 very slowly cooled. 



Table III. 





4-2 millims. thick. 



2-65 millims. thick. 



2-55 millims. thick. 



Rod 1. 



Rod 2. 



Rodl. 



Rod 2. 



Rod 1. 



Rod 2. 



Crude 



7-7994 

 7-7218 



7-7589 

 7-7687 

 7-8015 



7-7936 



7-8066 

 7-7290 

 7-7680 

 77719 

 7-7952 



7-7859 



77642 



7-6669 

 77124 



7-7367 

 7-7599 



77510 



7-7568 

 76570 

 7-7069 

 7-7274 

 7-7532 



7-7382 



77813 



7-6847 

 77367 

 7-7667 



7-7828 



7-7512 



7'7757 

 7-6862 

 77250 

 7-7584 

 7-7852 



77534 



Hardened 



Tempered yellow. 



„ blue... 



Grey 



Heatedto bright 1 

 redness J 



Again, if we put the volume of a rod in the crude state = 1, we 

 get:— 



Table IV. 



4-2 millims. thick. 



Rod 1. 



Rod 2. 



2*65 millims. thick 



Rodl, 



Rod 2. 



2-55 millims. thick, 



Rod 1. 



Rod 2. 



Crude 



Hardened 



Tempered yellow, 

 „ blue ... 



Grey 



Heated to bright ] 

 redness J 



10000 

 1-0100 

 1 0052 

 10040 

 00997 



,1-0008 



1-0000 

 10100 

 10047 

 1-0045 

 10015 



1-0027 



1-0000 

 10127 



1-0067 

 1-0036 

 1-0006 



10017 



1-0009 

 10130 

 10065 

 1-0038 

 1-0005 



1-0026 



1-0000 

 1-0126 

 10058 

 1-0019 



0-9998 



10039 



1-0000 

 1-0116 

 10066 

 10022 



0-9988 



1-0029 



The mean values of the volumes are accordingly :- 

 Table V. 



Rods. 



7 millims. 

 thick. 



4-2 millims. 

 thick. 



2*65 millims. 

 thick. 



2-55 millims. 

 thick. 



Crude 



1-00000 

 100772 

 100347 

 1-00217 

 0-99957 



1-00000 

 1-01000 

 100495 

 1-00425 

 1-00060 

 1-00175 



100000 

 1-01285 

 1-00660 

 1-00370 

 1-00055 

 1-00215 



100000 



101210 



1-00620 



1-00205 



0-99930 ! 



100340 



Hardened 



Tempered yellow 



,, blue 



Grey 



Hea 1 ed 1 o bright redness 



