; (38) thence generally northwest along said eastern shore of the Potomac River to its intersection with a line extending westward the northern boundary of the property designated as Square 12 Lot 806; (39) thence east along said line extending westward the northern boundary of the property designated as Square 12 Lot 806 to the northern property boundary of the property designated as Square 12 Lot 806, and continuing east along said northern boundary of said property designated as Square 12 Lot 806 to its northeast corner; (40) thence east along a line extending east from said northeast corner of the property designated as Square 12 Lot 806 to its intersection with the western boundary of the property designated as Square 33 Lot 87; (41) thence south along said western boundary of the property designated as Square 33 Lot 87 to its intersection with the northwest corner of the property designated as Square 33 Lot 88; (42) thence counter-clockwise around the boundary of said property designated as Square 33 Lot 88 to its southeast corner, which is along the northern right-of-way of E Street NW; (43) thence east along said northern right-of-way of E Street NW to its intersection with the western right-of-way of 18th Street NW; (44) thence south along said western right-of-way of 18th Street NW to its intersection with the southwestern right-of-way of Virginia Avenue NW; (45) thence southeast along said southwestern right-of-way of Virginia Avenue NW to its intersection with the northern right-of-way of Constitution Avenue NW; (46) thence east along said northern right-of-way of Constitution Avenue NW to its intersection with the eastern right-of-way of 17th Street NW; (47) thence north along said eastern right-of-way of 17th Street NW to its intersection with the southern right-of-way of H Street NW; (48) thence east along said southern right-of-way of H Street NW to its intersection with the northwest corner of the property designated as Square 221 Lot 35