heavy paper
Egypt
9th Century
Source: Sezgin, Fuat (2010). Science and Technology in Islam, Volume IV: Catalogue of the Collection of Instruments of the Institute for the History of Arabic and Islamic Sciences. Frankfurt am Main: Institut für Geschichte der Arabisch-Islamischen Wissenschaften.
Recipe Details
Evidence
"the vitreous body of the eye was painted in some other colour which apparently attacked the heavy paper, because it disintegrated in all illustrations exactly where it corresponds to the vitreous body."
Remarks
The text characterizes the paper substrate as 'heavy'. Despite its thickness, it suffered significant localized damage due to the chemical action of a specific pigment (p. 9).
Scientific Analysis
Certainty Level
Inferred
Instrumentally Verified
Not Verified
Metadata
Material Type
paper
Paper Typeheavy paper
RegionEgypt
Approx. Year850
Source Information
AuthorSezgin, Fuat
CollectionCairo manuscript, Hunain b. Isḥāq (d. 260/873)
Language
N/A
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