246 HEAVY-OIL ENGINES FOR MARINE PROPULSION. 
ment not only in the manufacture, but in the design, must take place, for we have got 
to train an absolutely new corps of men to operate our machinery. If our steam 
engineer gives us trouble, all we need to do is to hire a new man. ‘That was true 
ten years ago with the gasoline engine of small power. One of the great sources of 
trouble, one of the reasons why ten years ago the gasoline engine was not a success- 
ful unit, was the fact that the men were not trained to runit. ‘To-day, up to 100 
horse-power, I think we can say the gasoline engine is a success as a marine engine. 
There are a few units running of larger dimensions, but I challenge the statement 
that as a successful prime mover you can use large powers. It seems to me that 
those who are familiar with the Diesel engine in this country can very well afford to 
inform us on the points where we may look for trouble, because those points do exist. 
THE PRESIDENT :—I shall have to ask those who discuss this question or any 
of the other papers which follow, to make the discussion as brief as possible. The 
hour is growing late. 
Mr. A. GEorcE Marrsson, Member:—Judging by the remarks of the last 
speaker, perhaps we have already overcome the troubles in oil engines installed in 
vessels, and in case we have not there is certainly hope that it will be done in the 
future. 
It strikes one quite forcibly regarding some of the statements as to the cost of 
fuel. For instance, on the Pacific coast, the cost of coal is given as $8 per ton, and 
that of fuel oil as 2 cents per pound. Now, comparing these prices with those exist- 
ing in the Great Lakes district, where the price of coal is $2.75 per ton, we can readily 
see what an enormous difference there would be in the economy in using oil instead 
of coal in different localities. 
Secondly, when we consider the question of auxiliaries, taking for instance, a 
freight ship with 1,800 indicated horse-power, we often have auxiliaries amounting 
to 300 indicated horse-power, and the question thus arises, what kind of motive 
power should we have to run these auxiliaries? It is suggested to have a donkey 
boiler, and it should be one of fairly large dimensions, and in such a case, we have the 
complications arising from two systems in the same ship. Even if we have over- 
come the difficulties of the Diesel engine itself, employed as a prime motor, the com- 
plications of driving the auxiliaries have been such a factor that very little con- 
sideration has been given to the employment of the same in the Great Lakes district. 
Mr. THEODORE Lucas, Member:—Mr. Crane asked for some particulars from 
someone as to the experience with the Diesel engine. It has been my privilege to 
be for two years with the Diesel Engine Company, handling new business and a 
large amount of repairs and replacements, and it is my pleasure to present to the 
Society some experience in connection with a good many parts, and point out where 
these difficulties may occur. 
I would like to say, also, in a general way, that these difficulties were entirely 
of a mechanical nature, and that by superior workmanship, and the use of very high 
