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Classification of the Sci.
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1aγ. Terrestrial motor construction and adaptation is either the harnessing of animals or the construction of locomotives, or the adaptation of stationary engines and dynamos. The harnessing of animals depends on whether they are to be used with or without vehicles. It is the affair of the Spur-maker, whip maker, saddler, harness-maker, farrier, horse-shoer, etc. The locomotives are either steam, air, or gasoline engines or they are electric motors or are run by compressed air. The adaptation of stationary engines and dynamos is either by tubes in which the air is compressed or exhausted, by cables, or by trolley. To these we must add land transportation by gravity, as in the case of the railway near Mauch Chunk, and also in the case of the leading of water and oil through pipes and it canals and ditches.

1b. Transportation by water is divisible into

α Canal transportation,

β Transportation by nautical vessels,

γ Transportation by subaqueous machines.