2. It is best in regard to equipment and accommodation, since
a. The cars are the best equipped in the world. (Ibid.)
b. The cars are run with shorter intervals between them than anywhere else in the world. (Ibid.)
B. The fare in the United States is remarkably low, because
1. Although the fare in Glasgow, a leading exponent of municipal ownership, is but twopence, yet it will carry one only eight miles; but five cents in New York will carry one fifty miles.
Rule XI. Make no unsupported statements unless they are generally admitted to be true.
It has already been shown that the arguer must reveal to his audience the sources from which he gathered his evidence. If he gained certain information from magazines, he should state definitely the name, the volume, and the page; if he gained his information elsewhere, he should be equally explicit. Since this knowledge of the source of the evidence is essential to the success of the proof, a statement of the sources is a part of the work of conviction. Accordingly, these sources must be stated in the brief as well as in the expanded argument. Thus the rule:—
Rule XII. After all evidence state in parentheses the source from which it came.
In addition to establishing the side of the proposition which it advocates, a good brief almost invariably refutes the main arguments of the opposite side. The way in which this refutation is expressed is very important. A brief on the affirmative side of the proposition, "Resolved, That the Panama canal should be built at sea-level," would be weak and ludicrous, if, when answering the argument for the negative that the cost of a sea-level canal would be enormous, it should contain the following reasoning:—
The Panama Canal should be built at sea-level,
(for)
I. The cost would not be much greater than for a lock canal.