>
>However, my definition of isinglass comes from SSCR Journal, Nov 1994:
>
>"The word isinglass is derived from the obsolete Dutch word huisenblas
>which literally means 'sturgeon's bladder' [...] Isinglass has been
>used since the seventeenth century in the conservation and restoration
>of flaking paint on icons.  It is also used as an artist's binding
>medium.  In conservation, isinglass is used currently for the
>consolidation of paint in easel painting, panel painting and icon
>conservation."
>
>I hope that helps.
>
>Juan (with the assistance of Beata)
>
>Kari Laurent wrote:
>>
>> Does anyone have a source for eisenglass?  I'm told it's a type of plastic
>> used in the "windows" of old cast iron woodstoves.
>>
>> Kari Laurent, Collections Manager
>> Cave Creek Museum, Cave Creek, AZ
 BTW, isinglass (the bladder derivitive, not the mica!) is also used in
brewing beer. It is used to cause the yeast to precipitate out of the beer
so it doesn't end up in your pint.

robert bain