- 1Bundle of notes (YOR/1/1/1)
1911 - 1912, file - 2Volume containing material concerning cyclic elevators (YOR/1/1/2)
1900 - 1920, item - 3Seven boards with blueprint images of the Adkins-Lewis Rapid Transit System for Continuous Passenger Service (YOR/1/1/3)
1900 - 1920, item - 4General Report on the Adkins-Lewis System by H M Hobart (YOR/1/1/4)
22 February 1911, item - 5General Report on the Adkins-Lewis System by H M Hobart (YOR/1/1/5)
22 February 1911, item - 6Letter to Messrs. E R Calthorp and partners with a map (YOR/1/1/6)
25 May 1911 - 3 August 1912, item - 7Graphs of the trial of the Adkins-Lewis System (YOR/1/1/7)
25 November 1910, file - 8Volume containing a report on the Adkins-Lewis System (YOR/1/1/8)
8 December 1911, item - 9Chart of "Continuous Versus Intermittent Service in Passenger Transportation: Relative Capabilities of Various Systems" (YOR/1/1/9)
1920, item - 10Chart of "Continuous Versus Intermittent Service in Passenger Transportation: Relative Capabilities of Various Systems" (YOR/1/1/10)
1920, item - 11Letters to Messrs. Adkins and Lewis "Re the "A & L" system of rapid continuous transportation" (YOR/1/1/11)
22 February 1911, item - 12Report entitled "Adkins-Lewis Patent" (YOR/1/1/12)
2 May 1914, item - 13Bundle of letters (YOR/1/1/13)
1920 - 1923, file - 14Report entitled "Mechanical handling of material in modern coal mines" (YOR/1/1/14)
16 November 1922, file - 15Roll of drawings and calculations (YOR/1/1/15)
1910, file
