e and Art. This gentleman states that the pure yellow colouring matter greatly resembles that of the Persian berries. The Hoai-hoa or Wai-fa has not yet been imported into Britain for commercial purposes. A specimen, received from Dr. Martius, may be found in the museum of the Pharmaceutical… … HOANG-TCHI (nat.size). at one end, and tapering to a point at the other. The surface has from six to eight longitudinal ribs. The shell is hard and brittle, with an odour like honey and_ saffron. The interior appears suffused with a yellow colouring matter. Externally they are of a red-brown…
Technology
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![An illustration from The Antiquarian [serial] (1897)](https://img.insideoutlibrary.com/img/200/ia-antiquarianseria01colu-223-115.webp)
