_Copenhagen, May 14, 1916._
Once upon a time ... before the war, one went abroad with no more
preparation than a steamer ticket and an American Express check or
two. Two days ago, we undertook to go from Holland to Denmark, via
Germany. Before daring to approach Bentheim, the German frontier,
we were equipped with passports, thrice viséd; a special letter of
identification from the Department of State, birth certificates,
letters to the frontier authorities from Count Bernstorff and
the German Minister at The Hague, eighty-seven other letters of
introduction, two letters of credit, and a Philadelphia police card....