Puerto Rico 1908

Relief shown by contours, hachures, and spot heights. Depths shown by gradient tints, soundings, and isolines ; Buoys shown in red, black, and white ; "The soundings are in fathoms and show the depth at mean low water." ; "Heights in meters." ; Includes text, seal, and tables ; "No. 901" -- upper left margin ; "Plate no. 2927" -- upper center margin ; Oriented with north toward the upper left ; "(Date of first publication 1903)." ; "Published at Washington, D.C. March 1908 ..."Color1:100,00