No. 5. Cipher writing. At Page 398, reference is made to a Cipher letter, engraved in “The Life,” at page 180. It was written by the Marquis, as now appears, at Dublin, the 29th of September, 1645. The author having made out the character, is able to supply the following key, or alphabet.[A]

Curiously enough it is the document given at page 139, so that Carte must have obtained a deciphered copy as well. But the words, “the King of the assent,” should be “the King of his assent.” The words, “towards your Excellency” (in the 10th line) are not in the original. Also the words, “And my intention was ever to acquaint your Honour herewith,” should be “and mine intent was ever to acquaint you herewith.” There is no signature to the original, but the written direction shows it was from the Earl of Glamorgan.

We have now authentic proof of the construction and character of at least one Cipher method of writing adopted by the Marquis, eighteen years prior to the publication of the “Century.”

No. 53. An hollowing of a water-screw. A slight addition to the comment on this article will be easily understood by reference to the adjoining three figures, and probably throw some light on what the Marquis may have actually intended. Being desirous to construct a model screw, some years ago, the author designed the following method of making one of tin or zinc, which may be easily shown by cutting out the same in thin pasteboard. Form a number of discs of thin metal like No. 1, say three inches diameter, with a hole in the centre one inch diameter, and the metal cut through at A. Rivet, solder, or otherwise fasten them together, commencing by placing No. 2 on No. 1; now secure the cut edge of A, to the similar edge of b, and so on in succession, until a sufficient pile is obtained. They may now be extended to form a screw, as in No. 3, of any desired pitch. The minuter details of construction will be obvious to any clever artizan.