desired him to return with the following proposals and if Ministers agreed to them I would come over, First, For leaving France and the pursuits which at present occupy me, and for going to England I [demand] require the sum of Ten thousand Pounds; Second, On my arrival in London Government shall within three weeks, mane a committe to examin the following principles of submarine Navigation and attack; First Principle That a Submarine Vessel 35 feet long, 10 feet wide, an 8 feet deep, capable of containing 6 persons, shall have the property of sailing like an ordinary fishing Boat; Second That her capacity including her machinery shall be sufficient to hold provisions for Six persons to continue at Sea for twenty days; Third That Six persons can enter such a vessel & descend in her under water at pleasure, Fourth That the Six men can continue under water three hours without renewing the air, [Illustration: MANUSCRIPT PAGE OF “DRAWINGS & DESCRIPTIONS” ] Fifth That to renew the air, it is not necessary the Vessel should appear above water; but approaching the Surface two tubes project, through one of which the mephitic air is discharged, through the other fresh air is drawn into the Vessel, which operation can be performed in 3 or 4 minuets, to continue again three hours under water; in this manner a crew can conseal themselves under water during the day, on renewing the air 4 times, hence might lie many days in the Neighbourhood of an enemy unperceived, Sixth That the crew can raise her to the surface at pleasure hoist sail and proceed on their [Voage] Voyage; as before descending; Seventh That where the water is not more than Sixty fathoms deep, and the current not more than four miles an hour, she can cast anchor and continue under water at any depth from _one_ to fifty feet; that she will there remain as stationary as Vessels usually are while anchored on the surface; Eighth That in open Sea where bottom is not saught, she can plunge with safety and continue Under water while the air is respirable; but in this case she must drift with the tide like a vessel which cannot anchor and has no wind, Ninth That in Still water and while under water, she can move forwards, or backwards, to the right or left, mount or descend at pleasure; Tenth That She is capable of carrying 30 Submarine bombs each containing 100 pounds of powder