Difference between revisions of "Gall"

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(Additional Images)
(Sources Checked for Data in Record)
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== Sources Checked for Data in Record ==
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== Resources and Citations ==
  
 
* Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing)
 
* Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing)
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* Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982
 
* Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982
  
* ''Encyclopedia Britannica'', http://www.britannica.com  Comment: "gall" Encyclopædia Britannica [Accessed October 9, 2001]. (picture)
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* ''Encyclopedia Britannica'', http://www.britannica.com  Comment: "gall" [Accessed October 9, 2001]. (picture)
  
 
* F. Crace-Calvert, ''Dyeing and Calico Printing'', Palmer & Howe, London, 1876
 
* F. Crace-Calvert, ''Dyeing and Calico Printing'', Palmer & Howe, London, 1876
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* Judith Hofenk-de Graaff, ''Natural Dyestuffs: Origin, Chemical Constitution, Identification'', Central Research Laboratory for Objects of Art and Science, Amsterdam, 1969
 
* Judith Hofenk-de Graaff, ''Natural Dyestuffs: Origin, Chemical Constitution, Identification'', Central Research Laboratory for Objects of Art and Science, Amsterdam, 1969
  
* J. Thornton, 'The Use of Dyes and Colored Varnishes in Wood Polychromy', ''Painted Wood: History and Conservation'', The Getty Conservation Insitute, Los Angeles, 1998
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* J. Thornton, 'The Use of Dyes and Colored Varnishes in Wood Polychromy', ''Painted Wood: History and Conservation'', The Getty Conservation Institute, Los Angeles, 1998
  
  
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Revision as of 08:41, 12 August 2020

Gallnut
Gallnut powder

Description

An abnormal growth on trees, usually oaks (Quercus infectoria) in Europe and the Near East and on sumacs (Rhus semialata) in China and Japan. Galls are formed when gall-wasp eggs are deposited on tree branches. The nutlike gall grows until the larvae are completely enveloped. The mature insect bores a hole through the gall in order to escape. Bluish-green galls, gathered before the insect escapes, are richest in gallotannic acid, though all galls contain 36-60% tannins. The tannins have been used for centuries for vegetable tanning of Leather. When galls are combined with Ferrous sulfate, a black dye is produced; alone, they produce a gray dye. Gall extract was also used as a Mordant in the preparation of writing inks.

FTIR

NutgallsAleppoMFAIR.jpg


Synonyms and Related Terms

galls (pl.); Gallapfel (Deut.); agallas (Esp.); noix de galle (Fr.); galla (It.); galappel (Ned.); noz de galha (Port.); nutgalls; gallnuts; noix de galle; oak apples; oak gall nuts; huur nuts; tamarisk gallo; pistacia gall; aleppo gall; Chinese gall; gall-nuts

Additional Images

Resources and Citations

  • Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
  • Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
  • Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
  • F. Crace-Calvert, Dyeing and Calico Printing, Palmer & Howe, London, 1876
  • Judith Hofenk-de Graaff, Natural Dyestuffs: Origin, Chemical Constitution, Identification, Central Research Laboratory for Objects of Art and Science, Amsterdam, 1969
  • J. Thornton, 'The Use of Dyes and Colored Varnishes in Wood Polychromy', Painted Wood: History and Conservation, The Getty Conservation Institute, Los Angeles, 1998

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