a stopping train. Cubitt had been impressed during his visit to the Dalkey line, and the new L&CR third track would use atmospheric power. The local line would also be extended to Epsom, also as a single track atmospheric line. These arrangements were adopted and Parliamentary powers obtained on 4 July 1843, also authorising a line to a terminal at Bricklayers Arms. Arrangements were also made with the L&GR for them to add an extra track on the common section of their route. On 1 May 1844, the Bricklayers Arms terminus opened, and a frequent service was run from it, additional to the London Bridge trains. Now atmospheric as well The L&CR line diverged to the south-west at Norwood Junction (then called Jolly Sailor, after an inn), and needed to cross the L&BR line. The atmospheric pipe made this impossible on the flat, and a flyover was constructed to enable the crossing: this was the first example in the railway world. This was in the form of a wooden viaduct with approach gradients of 1 in 50. A similar flyover was to be built at Corbetts Lane Junction, where the L&CR additional line was to be on the north-east side of the existing line, but this was never made. A 15-inch diameter traction pipe was installed between Forest Hill (then called Dartmouth Arms, also after a local inn) and West Croydon. Although Samuda supervised the installation of the atmospheric apparatus, a weather flap, a hinged iron plate that covered the leather slot valve in the Dalkey installation, was omitted. The L&CR had an Atmospheric Engineer, James Pearson. Maudslay, Son and Field supplied the three 100 hp steam engines and pumps at Dartmouth Arms, Jolly Sailor and Croydon (later West Croydon), and elaborate engine houses had been erected for them. They were designed in a gothic style by W H Brakespear, and had tall chimneys which also exhausted the evacuated air at high level. A two-needle electric telegraph system was installed on the line, enabling station staff to indicate to the remote engine house that a train was ready to start. This section, from Dartmouth Arms to Croydon started operation on the atmospheric system in January 1846. The traction pipe slot and the piston bracket were handed; that is the slot closure flap was continuously hinged on one side, and the piston support bracket was cranked to minimise the necessary opening