750 , REPORT—1863. 
Silicon evidently constitutes the chief difference between the two samples 
given above and the iron usually produced in the neighbourhood. 
The composition of fifteen samples of ordinary iron smelted from the Cleve- 
land lias-stone is exhibited in the annexed table of analyses, These examina- 
tions, with two exceptions by Mr. Crowder, haye all been performed in the 
Clarence Laboratory. 
Clarence. Clarence. Clarence. Tees. Cleveland. So. Bank. 
No.1 Pig. No.1Pig, No.1 Pig. No.1Pig. No.1 Pig. No.1 Pig. 
Iron vee ae was 03708 92°68 94°13 92°40 92°43 92°57 
Carbon combined ae “48 78 "93 "44. "32, “47 
Do. uncombined ... 2°83 2°43 2°34 2°78 3°43 2°89 
Silicon ... ut of Tiss3i 72, 2:57 3°71 1°70 1°76 
Manganese es qed 576 tr. “31 "42 "30 "44 
Aluminium fs eth fue — — _- — _— 
Calcium ... sr as ee _ — —_ "05 03 
Magnesium... ee ee ~~ — -- ‘oI ‘ol 
Titanium my “oo — — 20 “56 "51 
Sulphur ... As bse "04 "25 tr. “16 28g 12 
Phosphorus... ane "30 "30 *30 1°20 1°24 1'29 
99°566 9916 00°58 10131 00°17 100°09 
Clarence. Clarence, Clarence. Clarence. Clarence, Tees. 
No.3Pig. No.3Pig. No.3 Pig. No.4Pig. No.4Pig. No. 4 Pig, 
Tron we os es 93°96 93°66 92°35 94°64 91°55 93°84. 
Carbon combined ve "43 28 1°24 26 1°26 22 
Do. uncombined ... 2°67 3°13 68 2°45 1°06 2°72 
Silicon ... a SY ME. “88 1°80 1°87 1°84 2°16 
Manganese nen Hy “ko ¥/ "81 "93 1°06 *50 
Aluminium ao dus Oh es “= *36 —_ 277 _— 
Calcium ... “ap oo *30 "93 — "44. 45 
Magnesium __.. eo “02 "24. — EK tr. 
Titanium oe aoe 25 "14 _ _— — "09 
Sulphur ... aa sue ‘Io “197 04 tr. 80 26 
Phosphorus... Sta "72 1°23 1°55 1'00 1°57 83 
I0I‘35 10018 1I00'00 10115 100°00 10107 
Crowder. Crowder. 
Clarence. Clarence. Clarence. 
Mottled. White. White. 
Tron wee ase ast 93°59 =e ee 97°30 ee ee 97°036 
Carbon combined aes 85 oF a “90 788 
Do. uncombined ... 2°70 ste a 1°06 at BY 7 
Silicon ... = ‘ne “56 at ee ‘II Ma 4.0 
Manganese re ae wh) 45 Sea ‘Ir 5 ts — 
Aluminium aS — ax er _ _— 
Calcium ... as Fs 26 ee ay a5 — 
Magnesium... Bcf "07 she 4 *06 fas — 
Titanium aa Sas — see a — es a — 
Sulphur ... te 453 “25 as oe “96 =e Pr, “312 
Phosphorus’... = I'05 oe Bee “26 ce ae 1°434 
From the following summary of some of the experiments on iron, under- 
taken by the War Department, an idea of the important question of relative 
strength may be gained, It is only fair to add that these trials were made 
soon after the works on the Tees commenced operations, since which time the 
qualities of the ore and its mode of treatment are better understood. 
