PLATE THE FOURTH
As my right to the Salary cannot as I conceive be questioned for I have continued in this Country to get the decision of ministers; and Should the 10 thousand pounds remuniration be admitted Government will owe me on this Account 1,608.. 3.. 2, such are the sums received by me and the Gross of their distribution the accounts will explain the details.
Robert Fulton
London august 10th 1806
Description of the drawings of the Submarine Vessel, submarine bombs, and mode of Attack
Plate the First half an inch to a foot,
The incompressible part of this vessel in which the men are when she descends under water, is composed of cast brass cylenders 6 feet diameter and 6 feet long about one inch thick; which will be of a strength to resist the pressure of more than one hundred perpendicular feet of water; Three or more of such cylenders may be screwed together at the flanges to make a length of 18 or 24 feet; the ends forming a part of a sphere to resist the pressure of the water in all directions; The dome where the Men enter may be three feet diameter three feet high; with a smaller dome on the lid through which observations may be made when raised a foot above the water:
The cylender and dome is placed in the body of an ordinary shaped vessel; and the water chambers for sinking will be round the cylender as seen in plate the second;
In this place it will only be necessary to mention the different parts which compose a submarine Vessel, any person acquainted with mechanics can trace their movements and uses,