peeds as 100, 124, 140.
Although it is quite possible that the further investigations of the
Research Committee on Marine Engine Trials may show that the present
actual consumption of coal per indicated horse-power is understated, yet
it is hardly probable that the relative results will be affected
thereby.

_Dimensions_.--In the matter of the power put into individual vessels,
considerable strides have been made. In 1881, probably the greatest
power which has been put into one vessel was in the case of the Arizona,
whose machinery indicated about 6,360 horse-power. The following table
gives an idea of the dimensions and power of the larger machinery in the
later passenger vessels:

TABLE III.--DIMENSIONS AND POWER OF MACHINERY IN LATER PASSENGER
VESSELS.

-----+----------------+-----------------------+-------+-----------+
| | |Length | |
Year.| Name of vessel.| Diameters of | of |Indicated |
| | cylinders. |Stroke.|horsepower.|
-----+----------------+-----------------------+-------+-----------+
| | Inches. |Inches.| |
1881 |Alaska | 68, 100, 100 | 72 | 10,686 |
-----+----------------+-----------------------+-------+-----------+
1881 |City of Rome | 46, 86; 46, 86; 46, 86| 72 | 11,800 |
-----+----------------+-----------------------+-------+-----------+
1881 |Servia | 72, 100, 100 | 78 | 10,300 |
-----+----------------+-----------------------+-------+-----------+
1881 |Livadia yacht | 60, 78, 78; 60, 78, \| 39 | 12,500 |
| | 78; 60, 78, 78 /| | |
-----+----------------+-----------------------+-------+-----------+
1883 |Oregon | 70, 104, 104 | 72 | 13,300 |
-----+----------------+-----------------------+-------+-----------+
1884 |Umbria |\ 71, 105, 105 | 72 | 14,320 |
1884 |Etruria |/ | | |
-----+----------------+-----------------------+-------+-----------+
1888 |City of New York|\ 45, 71, 113; \| 60 | 20,000 |
1889 |City of Paris |/ 45, 71, 113 /| | about |
-----+----------------+-----------------------+-------+-----------+
1889 |Majestic |\ 43, 68, 110; \| 60 | 18,000 |
1889 |Teutonic |/ 43, 68, 110 /| |