The expeditious calculator [electronic resource] : or, the merchant, owner, sea captain, and mate's assistant : shewing at sight, I. The standard deals in all the ports of Russia, Sweden, and Prussia, from a Single Deal to Six Thousand, from One Inch and a Half to Three Inches Thick, and from Five to Twenty Feet Long; brought into Twelve Feet Deals One Inch and a Half Thick, and to a 36th Part of a Single Deal. II. The Loads, Feet, and Inches that are contained in, from One to Three Thousand Dantzic Deals, from Eighteen to Forty Feet Long, and from Two to Three Inches Thick. III. The Standard Deals at Christiana and all the Southern Ports of Norway, except Dram, from Nine to Twenty Feet Long, and from One and a Quarter to Four Inches Thick, from a Single Deal to Six Thousand; brought into Deals Eleven Feet Long and One and a Quarter Inch Thick, and to a 55th Part of a Single Deal. IV. The Standard Deals at Dram in Norway, from a Single Deal to Six Thousand, from Ten to Twenty Feet Long, and from One and a Quarter to Three Inches Thick, in Ten and Twelve Feet Deals; and from One and a Half to Three Inches Thick, in Deals from Thirteen to Twenty Feet Long; and to a 30th Part of a Single Deal. By W. Waters.