New Locomotive Stock.

It is interesting to find that, among the new locomotives being built at the London and North Eastern shops, is a three-cylinder 2-8-2 type express passenger locomotive incorporating many of the characteristic features of the ‘Cock o’ the North” machine, described briefly some months ago in these Letters. Intended primarily for hauling day and night passenger expresses over the very heavily graded Edinburgh-Aberdeen section of the East Coast Anglo-Scottish tracks, the new locomotive, named the “Earl Marischal,” differs mainly from its predecessor in respect of the type of motion employed, and the maximum weights in working order of the engine and tender. Instead of poppet valves operated by rotary cam gear controlling steam admission and exhaust, the “Earl Marischal” has piston valves operated by Walschaert-Gresley gear of a pattern similar to that favoured for the London and North Eastern Railway “Pacific” locomotives. The maximum weight in working order of the “Earl Marischal” engine is 109 tons 8 cwts., and of the tender 57 tons 18 cwts.

A unique point about both the “Earl Marischal” and the “Cock o' the North” is that a steam collector integral with the dome is placed on top of the boiler barrel, this being formed of a steel pressing riveted to the boiler top, on the outside. A number of slots

A busy scene at Paddington Station, Great Western Railways, London.

Denis Passenger Station, Prague, Czechoslovakia.

in the top of the boiler barrel admit steam to the collector, the idea being to prevent water being carried over with the steam. The three cylinders, of 21 in. diameter and 26 in. stroke, drive on the second pair of coupled wheels.