TLS with 3 autogr. lines.
8vo. 1 p. on bifolium. Several addenda.
Fine collection of material about Alexander Graham Bell's experimental designs for hydrofoils and flying machines in his last years, i. e. the time of World War I and immediately thereafter. Brockett wrote to Bell: "The fact that I have not written to you does not mean that I have not been going ahead with the search for the material relating to the boats in which you are interested. I am going through some of the older series of 'Revista Marittima' and publications of a similar class, keeping a careful list of what I am doing, as suggested by you. Just to be sure that I am correct as to the size of the copy, I am sending you a few photostat copies which I have had made. It seems to me that it would have been much better to have the black on white as we agreed upon before you left. Another thing, as to bringing these things together, would you like to have me send them on or was it your intention that I should retain them here [...]".
A. G. Bell did not only invent the first telephone but was also a pioneer in the construction of hydrofoil boats. He undertook his first experiments in 1908 with his collaborator Fredrick "Casey" Baldwin (1882-1948), and in 1915 they created their most successful model, the HD-4, which reached 114 kilometers per hour - a record unchallenged for a decade.