39. Letter to the Secretary of the Eastern Steam Navigation Company, on Position as Engineer of the Company (August 16, 1854).....311 His unusual stake in the undertaking, and the heavy responsibility he has incurred (p. 311)--The work is one which requires that it should be entirely under his individual management and control (p. 312)--And therefore there must be no other adviser or source of information on any question connected with the construction or mode of carrying out the work (p. 312). 40. Letter to the same on an Article in a Newspaper (November 16, 1854).....313 His general rule is not to notice newspaper articles, but this one bears the stamp of authority (p. 313)--Marked care is shown in depreciating his former efforts in advancing steam navigation, and in representing him, in the present case, as the passive approver of the project of another (p. 313)--Whereas it originated solely with him, and has been worked out by him with great thought and labour (p. 314). 41. Report to the Directors of the Eastern Steam Navigation Company, describing the Nature of the Undertaking (February 5, 1855).....315 Labour of preparing the preliminary designs for the ship (p. 316)--[Proposed arrangements for launching]--Principal peculiarities in the construction of the ship (p. 316)--Water-tight compartments (p. 316)--Transverse bulkheads (p. 316)--Double skin (p. 317)--Longitudinal bulkheads (p. 318)--Economy in materials (p. 318)--Engines (p. 318)--Boilers (p. 319)--The best advice has been sought on every point (p. 319)--The position and design of the paddlewheels (p. 319)--The screw propeller--(p. 320)--Protection from fire (p. 320)--Masts and sails (p. 320)--Astronomical observations (p. 320)--Lightning conductors (p. 321)--Adjustment of compasses (p. 321). 42. Letter to G. B. Airy, Esq., Astronomer Royal (October 5, 1852).....321 As so much depends on perfect navigation, every means is to be taken to ensure a constant determination of the ship’s position and course (p. 321)--It is proposed to have an observatory and staff of observers to be constantly engaged in taking observations (p. 322)--What should be the nature of these observations and of the instruments required? (p. 322). 43. Memorandum on the Management of the Great Ship (October 1855).....324