The rediscovery of Tyrian purple, as it occurred in England, was made by Mr. Cole, of Bristol. About the latter end of the year 1683, this gentleman heard from two ladies residing at Minehead, that a person living somewhere on the coast of Ireland supported himself by marking with a delicate crimson color the fine linen of ladies and gentlemen sent him for that purpose, which color was the product of a shell-fish. This recital at once brought to the recollection of Mr. Cole the tradition of Tyrian purple. He, without delay, went in search of the shell-fish, and, after trying various kinds without success, his efforts were at length successful. He found considerable quantities of the buccinum on the sea-coast of Somersetshire and the opposite coast of South Wales. The fish being found, the next difficulty was to extract the dye, which in its natural state is not purple but white, the purple being the result of exposure to the air. At length our acute investigator found the dye-stuff in a white vein lying transversely in a little furrow or cleft next to the head of the fish. _Odor of Patchouli._ The odor of patchouli was known in Europe before the material itself was introduced, in consequence of its use in cashmere to scent the shawls with a view of keeping out moths, which are averse to it; hence the genuine cashmere shawls were known by their scent, until the French found out the secret and imported the herb for use in the same way. _Veneered Diamonds._ Quite a notable industry is carried on in Paris, namely, the manufacture of what are termed veneered diamonds. The body of the gem is of quartz or crystal. After being cut into a proper shape, it is put into a galvanic battery, which coats it with a liquid, the latter being made of diamonds which are too small to be cut and of the clippings taken from diamonds during the process of shapening them. In this way all the small particles of diamonds that heretofore have been regarded as comparatively worthless, can, by means of this ingenious process, be made of service to the jeweler. _Hungary Water._