put in, never having leaked at all, after having been 
in operation since October, 1858, and ran 22,388 
miles. 
The most durable firebox for burning anthracite 
coal we have had on the road is of iron, in a small 
boiler of one of our light engines, built by the Com- 
pany, about eight years since, and has been but a few 
months replaced with a new one. It is four feet five 
inches long, and three feet seven inches wide, making 
a grate area of 15.82 square feet. The sidesheets, 
being smaller than in the large engines now in use in 
our coal trade, were made direct from the bloom, and 
are consequently homogeneous; the flue sheet was also 
set back from the firebox about eight inches. It ran 
168,588 miles, but I have not included it in the aver- 
age number of miles ran by our engines with iron 
fireboxes. 
RECAPITULATION 
Average number of miles ran with iron firebox 

SHEEESS Fic) fee eneee ye ne eS oe cute me enor 59,866 
Average number of miles ran with copper 
firebox sheets, open end, ... . 25,373 
Average number of miles ran with copper 
firebox sheets; half closed, ...3.......... 29,391 
Average number of miles ran with copper 
side-sheets, closed end, and water-grates, .. 39,254 
Cost of Renewing the Copper Firebox Sheets 
abor “pericontract,” Jo a.aenea: sss $100 00 
S870 lbs sCOpPer, ao 2 = ei ee eee eect 278 40 
Oso bs boilerinon = ts o.seteeae ase 31 75 
NGStlbsemivetsi. 2a oe een ee eee PUAD5 
273 \bs. staybolts, SO Osta neh tae 21 84 
49 ft. hollow bolts, ..... ae 10 87 
Carried forward, o> ..0205-.. 40441 
Brought forward, . . $454 41 
Cr: 
By 530 Ibs. old copper, ... $106 00 
By 881 Ibs. scrap iron, ... Ti 
eee leat 
Balance, . $336 66 
Cost of renewing Tron Firebox Sheets 
VAD ORS heres tee a Sarde. ee ee $100 00 
1095 Ibs: boiler iron, 32 4een= ee 54 75 
LG5ilbssriv.ctsses ae ieee 1 55 
2 / 3elbsvestay bolts werent eect 21 84 
49" it: hollowsboltsi #42 2e. see 10 87 
$199 O1 
cr 
By ll 90/lbsxscrapmrony.yse cere 15 87 
Balance sanisec $183 14 
‘The consumption of fuel by our coal train engines, 
with a train of 100 loaded cars, with five tons per car, 
and 110 empty cars up, is on an average in the round 
trip of 190 miles, 9 tons of coal. 
The performance of our anthracite coal-burning 
passenger locomotives, I think, will compare favorably 
with locomotives using wood or bituminous coal on 
other roads. 
Annexed please find a statement of the performance 
of one of them, and it may be as well to state, that the 
engineer and firemen of this engine never ran a Coal- 
burner before, and had not been on this more than a 
month when the experiment was made, having been 
taken off a wood-burning passenger engine, and I 
have not the least doubt, but a better result can be 
shown under similar circumstances, in future. 
I would also call your attention to the performance 
of the Phoenix, the pushing engine at the Falls grade. 
This engine burns anthracite coal, is an eight wheel 
connected engine, and weighs 70,700 Ibs., and is doing 
the work that required two eight wheel connected 
wood-burning engines, weighing 52,192 Ibs. each. 
The number of engines that have been changed from 
wood to coal-burners, and the miles ran by each up to 
the 30th of Nov. 1859, will be found in the following 
statement. 
None of these engines have had new fireboxes, or 
firebox sheets put in their boiler since they com- 
menced burning coal. 
Very respectfully, 
JAMES MILLHOLLAND. 
U.S. Government Printing Office: 1967 
For sale by the Superintendent of Documents, U.S. Government Printing Office 
Washington, D.C., 20402—Price 30 cents 
