Published in March 1948 with the article "An Arnhem Land Adventure
This is a striking and detailed map of the Rhine River Valley
3 nice detail maps showing the proposed Sites for Range Beacons to Indicate Main Ship and Swash Channels Entrance to New York Harbor
with an inset map of Madrid
Preliminary Chart of Chesapeake Bay, Sheet No. 6 From The Mouth of York River to The Entrance to Bay Turkey Published in March 1948 withA nice preliminary chart of the lower section of the Chesapeake Bay. This is sheet No. 6 of a 3 sheet set (sheets 4, 5, 6) that show the lower half of the bay. This chart maps from the mouth of York River to the Bay's entrance. Sailing directions, dangers, lighthouses, light vessels, tides, numerous soundings, bottom types, some aids and hazards to navigation and some terrestrial features (farmlands, roads, place names, towns.