ForewordDavid SaundersA shell garniture from Gujarat in the British MuseumBarbara Wills, Susan La Niece, Bet McLeod and Caroline CartwrightNew visions of a new world: the conservation and analysis of the John White watercoloursJenny Bescoby, Judith Rayner, Janet Ambers and Duncan HookThe effect of ultraviolet-filtered light on the mechanical strength of fabricsCapucine KorenbergAn elusive stone: the use of variscite as a semi-precious stoneAndrew Middleton, Susan La Niece, Janet Ambers, Duncan Hook, Richard Hobbs and Guy SeddonThe emperor's terrapinMargaret Sax, Janet Ambers, Nigel Meeks and Sheila CanbyAztec conch shell working: high-tech designCaroline Cartwright and Nigel MeeksWriting that cannot be erased: investigations of a box of pigmented inlays from the tomb chapel of an Old Kingdom nobleJanet Ambers, Rebecca Stacey and John H. TaylorThe black bronzes of BurmaMaickel van Bellegem, Philip Fletcher, Paul Craddock, Susan La Niece and Richard BlurtonEffects of relative humidity on the corrosion of iron: an experimental viewQuanyu Wang.