December 15, 1916.
Secretary of the Smithsonian Institution,
I am sending a copy of a patent just issued, which it might be well to put with the other copies that I sent with the manuscript.
This patent was taken out chiefly with the idea of covering a magazine of the cartridge-belt type; and is of importance in that it describes a device for making the loading of the cartridge perfectly positive.
Very truly yours,
[signed]Robert H. Goddard