; (58) thence south along the boundary of said property designated as Square 221 Lot 818 to its southwest corner, which it shares with the property designated as Square 221 Lot 809; (59) thence south along the boundary of said property designated as Square 221 Lot 809 to its southwest corner, which it shares with the property designated as Square 221 Lot 800; (60) thence counter-clockwise along the boundary of said property designated as Square 221 Lot 800 to its southwest corner, which it shares with the property designated as Square 221 Lot 810; (61) thence counter-clockwise along the boundary of said property designated as Square 221 Lot 810 to its southwest corner, which is along the northern right-of-way of Pennsylvania Avenue NW; (62) thence east along said northern right-of-way of Pennsylvania Avenue NW to its intersection with the western right-of-way of 15th Street NW; (63) thence south along said western right-of-way of 15th Street NW to its intersection with a line extending northwest from the southern right-of-way of the portion of Pennsylvania Avenue NW north of Pershing Square; (64) thence southeast along said line extending the southern right-of-way of Pennsylvania Avenue NW to the southern right-of-way of Pennsylvania Avenue NW and continuing southeast along said southern right-of-way of Pennsylvania Avenue NW to its intersection with the western right-of-way of 14th Street NW; (65) thence south along said western right-of-way of 14th Street NW to its intersection with a line extending west from the southern right-of-way of D Street NW; (66) thence east along said line extending west from the southern right-of-way of D Street NW to the southern right-of-way of D Street NW, and continuing east along said southern right-of-way of D Street NW to its intersection with the eastern right-of-way of 13½ Street NW; (67) thence north along said eastern right-of-way of 13½ Street NW to its intersection with the southern right-of-way of Pennsylvania Avenue NW