Illustrated autograph letter signed.
8vo. 3½ pp. on single bifolium.
To Joel Burdick, describing aspects of an improved design for a medical stretcher, with 3 small diagrams showing a wheel from various angles: "I had advice yesterday at David's Island wid [sic] de machine [...] They like it but suggested two changes [...] It wants to be cut out for a 5 ft 8 inch man or have a system of pins in the bearing irons which will make it adjustable to any man's height--simple. Second, we want it made with a platform, so that a stretcher will set on it and can be taken off at will [...] then the cross piece must be bent slightly so that the canvas won't fall on it with weight of patient &c [...] To hell with Germany--I don't see but we can let them do the worrying. We can get this in the European armies all right by trying [...]".
Minor staining at bottom corners.