marquetry. He used the Excel 1 vacuum press to power the infuser. His website has more information including a nice video in which he explains the process. "This bench top vacuum infuser is the perfect accessory for a woodshop vacuum pump. A vacuum infuser allows you to evenly dye veneer and small pieces of wood. You can also infuse wood stabilizing products such as acrylic resin, sanding sealer or Miniwax Wood Hardener. The applications for a vacuum infusing are broad, ranging from colored veneer for marquetry to colored and stabilized pen turning blanks to colored and stabilized custom knife scales."
rule violations that the magnitude of the problem was borne in upon them. The problem had swollen to such proportions because so large a volume of messages had to be handled by so many untrained men— against whom were pitted the best brains of the enemy. The experts realized that to eliminate these is to strengthen cryptographic security more effectively than by introducing the most ingenious cipher. The great practical lesson of World War I cryptology was the necessity of infusing an iron discipline in the cryptographic personnel. All these developments, however, resulted essentially from the interreaction between cryptology and the outside world; they were externally oriented. World War I originated no developments that were internally oriented, as, for example, was the emergence of the field cipher. On the contrary, two of the most central activities—the actual cryptographic operations, which were performed by hand, and the
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