[Letters (3)] 1848 [&] 1849 [to] Capt. [Constantine] Moorsom/Robert Stephenson. [/1: describes an unsuccessful attempt, due to fast tides, to float the first tube of Conway rail bridge using pontoons. First page bears engraving of Conway Castle and Bridge by W. Pritchard, Carnarvon; /2 he is exhausted by extensive rail travel; asks Moorsom to "bring the levels of the Carnarvon branch" adding that "it would be well for Forster and Clark to be in London at the meeting" too; /3 he hopes to attend Board meeting but has little to add. "I am doing everything in my power to press forward the preparations for floating" (the tubes of Britannia Bridge) but is "exceedingly anxious". Hydraulic presses are "progressing very rapidly".]