"
And it certainly was. It contained the name of every vessel in the
British Navy, every naval base, fortification and strategic point, in
Great Britain. There were over ten thousand names and opposite each
was written a number. For example, the battle cruiser _Queen Mary_
was number 813.
As I have confessed, I am superstitious. And have I not reason to be?
It was the Burroughs & Wellcome letter that got me caught in the first
place. And my secret code was written in a book issued for the use of
physicians by Burroughs & Wellcome! Both times the B & W mark was
upon me.
Using a magnifying glass I had written in tiny characters my code.
There were so many names it was impossible to memorize them all. Two
opposite sheets of the little memoranda book were used, then the edges
of the pages were pasted together. Whenever I learned the British
warships were going to put to sea, I slipped the book in my pocket,
went to a position of vantage where I could make out the silhouettes
of the warships, classified them in my mind, and then writing out a
cable put down the code numbers, say in this way.
214, 69, 700, 910, 21--(Necessary words were filled in by the
A. B. C. code).
This message was sent by way of Brussels or Paris to the Intelligence
Department of the German Admiralty in Berlin and told them what
warships were putting to sea or arriving at Rossyth.
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