April. Two infernal machines, containing 28 lbs. of lignin dynamite (probably home-made), discovered at Liverpool. Four persons were convicted and sentenced to penal servitude for life.
April. The discovery of a factory of nitro-glycerine at Birmingham, and of a large amount of nitro-glycerine brought thence to London. The occupier of the house and others were subsequently convicted and sentenced to penal servitude for life.
30 October. An explosion in the Metropolitan Railway, between Charing Cross and Westminster, unattended with personal or serious structural injury.
30 October. An explosion on the Metropolitan Railway, near Praed Street. Three carriages sustained serious injury, and about sixty-two persons were cut by the broken glass and debris, and otherwise injured.
November. Two infernal machines discovered in a house in Westminster, occupied by a German named Woolf. Two men were tried, and in the result the jury disagreed and a nolle prosequi was entered on behalf of the Crown.
1884: January. The discovery of some slabs of Atlas Powder A (American make), in Primose Hill tunnel.
February. An explosion in the cloak-room of the London, Brighton, and South Coast Railway at Victoria Station of Atlas Powder A (American make), left in a bag or portmanteau.
27 February. The discovery of a bag containing some Atlas Powder A, with clock-work and detonators, at Charing Cross Station.
28 February. A similar discovery at Paddington Station.
1 March. A similar discovery at Ludgate Hill Station.