>I am very curious to learn if there exists a technique for whitening old,
>yellowed porcelain that involves heating it in conjunction with hydrogen
>peroxide.  Is this a silly notion or apt to work?  Would appreciate some
>guidance.
>John McDonald
>Yale Art Gallery
>New Haven, CT

What? Why? Stuff in your personal collection or stuff in the museum's
collection? Aren't there any professional conservators in New England? Did you
lose the phone number for SPNEA?  Please don't do anything that can't be
reversed. Call Amy Trout @ the New Haven Colony Historical Society. She should
be able to provide a referral to a conservator in your area.