The New Student's Reference Work/Ning-Po

Ning′-Po′ (City of the Hospitable Waves), a treaty port of the province of Che-Kiang in China, lies 16 miles from the mouth of the Ning-Po River; is surrounded by a wall 25 feet in height and 16 in thickness.  It is a free port, exporting sedge hats, green tea, mats, cuttlefish, silk goods and raw cotton, and importing opium, cotton and woolen goods, tin and iron, kerosene oil, sugar, tobacco and indigo.  Population estimated at 400,000.