TheCodeBreakers
It consists of an old
castle, with crenellated walls pierced by loopholes, surrounded by deep
moats and drawbridges. Its 46 rooms contain more than 100,000
bundles, or legajos, in each of which are filed from 10 to 100 documents,
making a total of several million. From this staggering accumulation
Bergenroth had to select the pertinent items. It was hard for him even to
get at them. When Spain's archives administration finally granted him
entree, the crabbed Renaissance semiuncials made long and dogged
practice necessary before he could read the handwriting. Indeed, the
archivist himself had often been defeated by it, and in his jealousy at
Bergenroth's success he deliberately hampered the historian's work by
refusing access to such cipher keys as were in his possession.
Bergenroth had to recover them by himself, as well as those keys^ that
had been lost.
The story of his cryptanalytic endeavors can be pieced together from
several of his writings.