might be rightly said to be or include the suggested purpose, but H. C. as they stand on importation it is not the case, and that is the determining factor. The reasons for holding the chassis not within the Item 380 (E) when treated as separate integers are SO little distinguishable from those for considering the vehicles themselves not motor cars or waggons, that they are conveniently stated in the latter connection.
The leading vehicle, as Hood J. held, is not a car. Except the driver who operates the mechanism, and has no object in SO operating it other than to move and guide the whole combined train, the vehicle is not intended or adapted to convey persons or goods, or any burden whatever. It is truly, as Hood J. described it, "a travelling power-house and, it may be added, "a general steering apparatus."
The power it generates is SQ distributed as to leave just enough for the vehicle itself to move along, the rest of the power being transmitted to the trailers.
The leading vehicle, therefore, also cannot be properly called a waggon." It is certainly self-propelled, and SO comes within the term "motor," but the other element necessary, namely, "waggon," being absent, the first car is excluded from Item 380 (E). It was argued that excess of power does not deprive it of the character of "motor waggon." I entirely agree, if, with- out the excess, it possesses that characteristic. If, for instance, the first vehicle, called for convenience "the engine car," could, together with the first trailer, be considered as one vehicle, the argument would have application, because the combination would include self-propulsion and a waggon. Any excess power trans- missible to other trailers, or, as suggested, utilized for racing purposes, would not deprive the combination of its true character. But the combination aspect was expressly rejected by learned counsel, and discreetly. Unless the whole train be one unit, the two vehicles are separate, and have two distinct chassis.
But the result is to leave the first not a waggon, and the second not self-propelled.
The essence of "self-propulsion" is that, at the moment of moving, the vehicle is independent of and unconnected with external objects. Its moving force may be generated within