During the day conditions worsened quickly—for example, a 2-6-0 on the Uckfield line suddenly encountered flood water high enough to enter its ashpan and extinguish its fire—until lock gates up-river at Barcombe gave way and a tidal wave rolled down the valley meeting head-on a spring tide rolling up from the coast.

These formulae . . . give for the vanishing point of a set of parallel lines whose common azimuth is α and declivity δ: η=d tan α, ζ=d tan δ sec α.

One of the most recent devices for use in communication between deaf mutes is a talkless phone that conveys messages by means of an alphabet printed on electric-light bulbs.

The silt is brought down and the strong tide of the Humber brings it up in very large quantities, so that the river the whole way through nearly is exceedingly thick. Added to that I may say that we suffer from warp to a tremendous extent.