Three letters on the subject of the Marine Society : Let. I. On occasion of their clothing for the sea 3097 men, and 2045 boys, to the end of Dec. 1757 : II. Pointing out several advantages accruing to the nation from this institution : III. Being a full detail of the rules and forms of the Marine Society : with a list of the subscribers ... to which is prefixed, a general view of the motives for establishing this society /