Manuscripts/Mixed Material Notes by Mabel Hubbard Bell, 1907
And it is this attitude of his mind that is at the bottom of the purpose for which I offered my own small fortune. To take these inventions whose practicability has been demonstrated by Mr. Bell and make them practical. To take inventions made by Mr. Bell, inventions of which he and
Now of all these inventions I am especially interested just now in Mr. Bell's Tetrahedral Construction System, on which he has obtained letters patent and which is adapted for use in a variety of ways all of which require development. The use for which it was especially invented and which engages Mr. Bell's attention now is its applicability to the construction of flying machines. But it is also applicable to the construction of towers, bridges etc., of steel and iron and of various other structures of wood. I believe its possible use in these various other ways is very great, and well worthy of being developed to the benefit of the public and incidentally of course to the credit of Mr. Bell its inventor. But Mr. Bell will never probably fuss with it, certainly not alone, and I am seeking to induce someone else to take up and carry on this work of Mr. Bell's.