I wish the Convention would order the Depth & Breadth of Hudson's River to be carefully taken at such place as they conceive would be most proper effectually to obstruct the Navigation -Ver plank's Point or Jan Kanten Hook may be proper places, perhaps the latter the most eligible of any -I propose taking the earliest Opportunity that is afforded me to prepare every thing for it -At present I cannot, as I have neither Troops N.or Carpenters -the latter being all employed in constructing Barracks.