Instead of large continuous areas, in which local characteristics sometimes blend, it occupies widely dissevered territories in which specialization, intensified by long se1/2aration, hai mostly effaced the possibility of comparing species hnd even genera and compels us to seek for points of contact in groups of a higher order.
The excessive heat of the upper regions compels him to descend, and he next visits the bottom of the sea in a kind of diving-bell.
The abrupt contradictions to which such development leads of necessity compels revision of the principle itself.
The slope of the river bed diminishes until the plain compels the river to move slowly, swinging in meanders proportioned to its size, and gradually, controlled by the flattening land, ceasing to transport material, but raising its banks and silting up its bed by the dropped sediment, until, split up and shoaled, its distributaries struggle across its delta to the sea.
A system of charges which compels each piece of traffic to pay its share of the charges for track and for stations overlooks the fundamental fact that a very large part of the expenses of a railway - more than half - is not connected either with the cost of moving traffic or of handling traffic at stations, but with the cost of maintaining the property as a whole.