Secondly, Necessity; or the doctrine that every action, whether good or bad, is included in an unchangeable and unavoidable system; a notion utterly subversive of moral government.

Ideally (but not an absolute necessity) the service line should also extend all the way up to the front wall in order to divide the forecourt in two for service placement.

There were a railway station and storehouses on a scale which would not yield a return on capital expenditure for many years, and the water tower and engine sheds were built to last longer than merely military necessities demanded.