nyuuzyou/wikis huggingface dataset:
Hank

== Description ==
In, general, a coil or loop of yarn, such as a skein. The term 'hank' has also been used as a measurement. The standard length for a hank of cotton yarn is 840 yards. For cotton, 7 leas make a hank, while for linen 12 leas make a hank.
== Synonyms and Related Terms ==
madeja (Esp.); streng (garen) (Ned);
==Resources and Citations==
* Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
* Fairchild's Dictionary of Textiles, Phyllis G.Tortora, Robert S. Merkel (eds.), Fairchild Publications, New York City, 7th edition, 1996
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
* Hoechst Celanese Corporation, Dictionary of Fiber & Textile Technology (older version called Man-made Fiber and Textile Dictionary, 1965), Hoechst Celanese Corporation, Charlotte NC, 1990
Category:Materials database
Hannoki + Ume - left (40 L)

[[[SliderGallery rightalign|Uemura_04-16-2009_040.jpg~Normal]]]{| class="wikitable"
|-	
! scope="row"|Museum number
| 40
|-	
! scope="row"|Uemura number / title
| ; "Haze-some 25"
|-	
! scope="row"|Folder location
| 1st shelf
|-	
! scope="row"|Sample location
| left (40 L)
|-	
! scope="row"|Fiber type
| silk
|-	
! scope="row"|Color
| dark brown
|-	
! scope="row"|Dyestuff (Japanese common name)
| 榛 + 梅 : Hannoki + Ume
|-	
! scope="row"|Dye (English common name)
| Japanese Alder + Japanese plum
|-	
! scope="row"|Dyestuff (botanical name)
| Alnus japonica (Thunb.) Steud; and Armeniaca mume (Siebold et Zucc.) de Vriese (Prunus mume Siebold et Zucc.)
|-	
! scope="row"|Plant part
| alder: bark /dried (?), plum: bark /dried (?)
|-	
! scope="row"|Dyestuff extraction
| boiled in water
|-	
! scope="row"|Auxiliary agent in dye bath
| -
|-	
! scope="row"|Mordant
| iron
|-	
! scope="row"|Other auxiliary agent
| -
|-	
! scope="row"|Dyeing process
| To prepare the dye bath, apricot bark was added into the boiled extract of alder bark.
|-	
! scope="row"|Uemura's notes
| Even if a fabric was soaked into a dye bath in which alder bark would be added into a boiled extract of apricot bark, it still generated the same color as the samples. Use of apricot wood instead of its bark did not affect the result. The resultant color of the mixture solution falls between that of Japanese apricot and that of Japanese alder. Depending on the ratio of the two in a dye bath, the tone of the resultant color would shift.
|-	
! scope="row"|Uemura's date
| Kyoto
|}
Category:Uemura dye archive
Hannoki + Ume - left (41 L)

[[[SliderGallery rightalign|Uemura_04-16-2009_041.jpg~Normal]]]{| class="wikitable"
|-	
! scope="row"|Museum number
| 41
|-	
! scope="row"|Uemura number / title
| ; "Haze-some 25"
|-	
! scope="row"|Folder location
| 1st shelf
|-	
! scope="row"|Sample location
| left (41 L)
|-	
! scope="row"|Fiber type
| silk
|-	
! scope="row"|Color
| yellowish brown
|-	
! scope="row"|Dyestuff (Japanese common name)
| 榛 + 梅 : Hannoki + Ume
|-	
! scope="row"|Dye (English common name)
| Japanese Alder + Japanese plum
|-	
! scope="row"|Dyestuff (botanical name)
| Alnus japonica (Thunb.) Steud; and Armeniaca mume (Siebold et Zucc.) de Vriese (Prunus mume Siebold et Zucc.)
|-	
! scope="row"|Plant part
| alder: bark /dried (?), plum: bark /dried (?)
|-	
! scope="row"|Dyestuff extraction
| boiled in water
|-	
! scope="row"|Auxiliary agent in dye bath
| -
|-	
! scope="row"|Mordant
| lime
|-	
! scope="row"|Other auxiliary agent
| -
|-	
! scope="row"|Dyeing process
| The dye stock solution was prepared in the same manner as the "M.13, Zatsu-54 Umeyashibu 1" (record no. 70).
|-	
! scope="row"|Uemura's notes
| The affinity of the contained dye compound(s) with silk and cotton was compared. Note that so-called "Umeyashibu" in Osaka (?) involves a dye stock solution, in which Japanese alder bark is added to a boiled extract of Japanese apricot wood.
|-	
! scope="row"|Uemura's date
| Kyoto
|}
Category:Uemura dye archive
Hannoki + Ume - right (40 R)

[[[SliderGallery rightalign|Uemura_04-16-2009_040.jpg~Normal]]]{| class="wikitable"
|-	
! scope="row"|Museum number
| 40
|-	
! scope="row"|Uemura number / title
| ; "Haze-some 25"
|-	
! scope="row"|Folder location
| 1st shelf
|-	
! scope="row"|Sample location
| right (40 R)
|-	
! scope="row"|Fiber type
| silk
|-	
! scope="row"|Color
| brown
|-	
! scope="row"|Dyestuff (Japanese common name)
| 榛 + 梅 : Hannoki + Ume
|-	
! scope="row"|Dye (English common name)
| Japanese Alder + Japanese plum
|-	
! scope="row"|Dyestuff (botanical name)
| Alnus japonica (Thunb.) Steud; and Armeniaca mume (Siebold et Zucc.) de Vriese (Prunus mume Siebold et Zucc.)
|-	
! scope="row"|Plant part
| alder: bark /dried (?), plum: bark /dried (?)
|-	
! scope="row"|Dyestuff extraction
| boiled in water
|-	
! scope="row"|Auxiliary agent in dye bath
| -
|-	
! scope="row"|Mordant
| lime
|-	
! scope="row"|Other auxiliary agent
| -
|-	
! scope="row"|Dyeing process
| To prepare the dye bath, apricot bark was added into the boiled extract of alder bark.
|-	
! scope="row"|Uemura's notes
| Even if a fabric was soaked into a dye bath in which alder bark would be added into a boiled extract of apricot bark, it still generated the same color as the samples. Use of apricot wood instead of its bark did not affect the result. The resultant color of the mixture solution falls between that of Japanese apricot and that of Japanese alder. Depending on the ratio of the two in a dye bath, the tone of the resultant color would shift.
|-	
! scope="row"|Uemura's date
| Kyoto
|}
Category:Uemura dye archive
Hannoki + Ume - right (41 R)

[[[SliderGallery rightalign|Uemura_04-16-2009_041.jpg~Normal]]]{| class="wikitable"
|-	
! scope="row"|Museum number
| 41
|-	
! scope="row"|Uemura number / title
| ; "Haze-some 25"
|-	
! scope="row"|Folder location
| 1st shelf
|-	
! scope="row"|Sample location
| right (41 R)
|-	
! scope="row"|Fiber type
| cotton
|-	
! scope="row"|Color
| light brown
|-	
! scope="row"|Dyestuff (Japanese common name)
| 榛 + 梅 : Hannoki + Ume
|-	
! scope="row"|Dye (English common name)
| Japanese Alder + Japanese plum
|-	
! scope="row"|Dyestuff (botanical name)
| Alnus japonica (Thunb.) Steud; and Armeniaca mume (Siebold et Zucc.) de Vriese (Prunus mume Siebold et Zucc.)
|-	
! scope="row"|Plant part
| alder: bark /dried (?), plum: bark /dried (?)
|-	
! scope="row"|Dyestuff extraction
| boiled in water
|-	
! scope="row"|Auxiliary agent in dye bath
| -
|-	
! scope="row"|Mordant
| lime
|-	
! scope="row"|Other auxiliary agent
| -
|-	
! scope="row"|Dyeing process
| The dye stock solution was prepared in the same manner as the "M.13, Zatsu-54 Umeyashibu 1" (record no. 70).
|-	
! scope="row"|Uemura's notes
| The affinity of the contained dye compound(s) with silk and cotton was compared. Note that so-called "Umeyashibu" in Osaka (?) involves a dye stock solution, in which Japanese alder bark is added to a boiled extract of Japanese apricot wood.
|-	
! scope="row"|Uemura's date
| Kyoto
|}
Category:Uemura dye archive
Hansa

== Description ==
Originally a Hoechst AG trademark for a line of bright, transparent yellow, orange and red synthetic organic pigments. Now, Hansa is a commonly used designation for this class of insoluble azo pigments. Hansa colors were first made in Germany in 1900 and were first used in artists paints about 1910. When used full strength, Hansa colors have good lightfastness, but they tend to fade when mixed with white pigments. They also have good weather resistance but are susceptible to bleeding in some media. Hansa colors are used in enamels, paints, plastics, rubber and coated paper.
== Risks ==
* Most are suspected carcinogens.
== Physical and Chemical Properties ==
Insoluble in water, acids or alkalis.
==Resources and Citations==
* Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Reed Kay, The Painter's Guide To Studio Methods and Materials, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1983 Comment: available in artist colors since the 1930s
* Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986 Comment: Developed in Germany in 1900; used in artist colors since about 1910
* B. Berrie, S.Q. Lomax, 'Azo Pigments: Their History, Synthesis, Properties and Use in Artists' Materials', Studies in the History of Art , National Gallery of Art, Washington DC, No. 57, 1997 Comment: First sold in 1909; used in artist colors in 1915
Category:Materials database
Hansa orange

== Description ==
Originally a Hoechst AG trademark for a line of bright, transparent orange synthetic organic pigments. Hansa orange dyes are composed of dinitro- or ortho- aniline. This class of dye was first discovered in 1907 by R. Lauch.
See also Hansa.
[[[SliderGallery rightalign|PO5 kremer 55200 (with calcite).TIF~FTIR KremerPO005(MFA)|PO005 sun dna orange 276-5483.TIF~FTIR SunPO005(MFA)]]]
== Synonyms and Related Terms ==
Pigment Orange 1, 2 and 5; CI Nos. 11725, 12060 and 12075
== Comparisons ==
Pigment number	Manufacture	Pigment name 	Manufacture CI number	Comments
PO005 	Kremer 	studio pigment orange 	55200 	sample contains calcite
PO005 	Sun 	DNA orange 	276-5483 	
PO005 	unknown 	monolite red 2g (beta-napthol)	unknown 	from Tate Collection
== Risks ==
CI Pigment Orange 5 is a suspected carcinogen, mutagen and may contain toxic impurities.
==Resources and Citations==
* Monona Rossol, The Artist's Complete Health and Safety Guide, Allworth Press, New York, 1994
* Colour Index International online at www.colour-index.org
Category:Materials database
Hansa red

== Description ==
Originally a Hoechst AG trademark for a line of bright, transparent red synthetic organic pigments. Hansa reds, also called toluidine reds, are based on the reaction of beta-naphthol with 2-nitro-4-toluidine. Toluidine red was first synthesized in 1905. In general, toluidine reds have fair lightfastness and weather resistance, and they have a tendency to bleed. They are used in industrial coatings for air-dried and baked enamels and auto finishes. Toluidine reds are also used in wax crayons, pastels and watercolors. 
See also Hansa.
== Synonyms and Related Terms ==
toluidine red; Pigment Red 3; CI 12120
[[[SliderGallery rightalign|PR3 kremer 23950.TIF~FTIR PR3(MFA)|PR004 Hansa Red R (Tate).PNG~FTIR PR4(MFA)]]]
== Comparisons ==
Pigment number	Manufacture	Pigment name 	Manufacture CI number	Comments
PR003 	Kremer 	studio red, helio 	23950 	
PR004 	unknown 	Hansa red R (beta-naphthol)	unknown 	sample from Tate Collection
== Risks ==
* Ingestion can cause cyanosis. 
* Suspected carcinogen.
==Physical and Chemical Properties==
Soluble in many organic solvents. Resistant to acid, alkali and soap.
==Resources and Citations==
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
* Monona Rossol, The Artist's Complete Health and Safety Guide, Allworth Press, New York, 1994
* B. Berrie, S.Q. Lomax, 'Azo Pigments: Their History, Synthesis, Properties and Use in Artists' Materials', Studies in the History of Art , National Gallery of Art, Washington DC, No. 57, 1997
Category:Materials database
Hansa yellow

== Description ==
Originally a brand name [Hoechst AG] for a series of bright yellow synthetic organic pigments. Hansa yellow is now a commonly used designation for this class of yellow monoazo colorants. They are also called arylamide yellows. Developed in Germany in the early 20th century, Hansa yellow was the first permanent organic yellow pigment. It was available for artists paints about 1915. The insoluble colorants have good lightfastness and weather resistance but are susceptible to bleeding in some media and discoloration when heated. They were commonly used as inexpensive substitutes for cadmium yellows in paints, plastics, rubber and coated paper. Recently, they have been superseded by diarylide and vat yellows. 
* Hansa R is a reddish yellow. 
* Hansa G is a greenish-yellow. 
A number preceding the G indicates the degree of toning, i.e., 10G is greener than 5G.
[[[SliderGallery rightalign|PY3 kremer23850.TIF~FTIR PY3(MFA)|Hansa Yellow 332.TIF~FTIR Forbes 332(MFA)|Hansa Yellow (Forbes MFA 331) collodion slide, 785 nm (640x445).jpg~Raman|f331sem.jpg~SEM|f331edsbw.jpg~EDS|Slide1 FC331.PNG~XRF]]]
== Synonyms and Related Terms ==
arylamide yellow; Monolite yellow; Talens' yellow; Pigment Yellow 1, 3, 5 and 10; Hansagelb (Deut.); jaune solide (Fr.)
== Comparisons ==
Pigment number	Manufacture	Pigment name 	Manufacture CI number	Comments
PY003 	Kremer 	studio yellow 	23850 	
Forbes 332 	unknown 	Hansa yellow deep	unknown manufacturer 	
==Resources and Citations==
* R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966
* Reed Kay, The Painter's Guide To Studio Methods and Materials, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1983 Comment: available as an artist color since the 1930s
* 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 Comment: Developed in Germany in 1900; first used as an artist color about 1910
* B. Berrie, S.Q. Lomax, 'Azo Pigments: Their History, Synthesis, Properties and Use in Artists' Materials', Studies in the History of Art , National Gallery of Art, Washington DC, No. 57, 1997 Comment: First sold in 1909; used as an artist color in 1915
* M. de Keijzer, 'A survey of red and yellow modern synthetic organic artists pigments discovered in the 20th century and used in oil colors', ICOM Preprints Lyons, France, Getty Conservation Institute, Los Angeles, p. 369, 1999
* Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
Category:Materials database
Hard paste porcelain

== Description ==
True, translucent porcelain which has been fired at temperatures of about 1400C. Hard paste porcelain is composed of kaolin, feldspar, quartz, and/or flint. Hard paste porcelains were made in China and Japan in the 5th century CE from naturally occurring mixtures of clay. The first man-made mixture of hard paste was developed in Meissen, Germany in 1710. Soft paste porcelains are fired at lower temperatures.
== Synonyms and Related Terms ==
pate dure; hard-paste; hardpaste; porcelaine à pâte dure (Fr.); porcelana de pasta dura (Port.)
==Resources and Citations==
* Henry Hodges, Artifacts: An Introduction to Early Materials and Technology, Ronald P. Frye, Kingston, Canada, 1988
* Robert Fournier, Illustrated Dictionary of Practical Pottery, Chilton Book Company, Radnor, PA, 1992
* The Dictionary of Art, Grove's Dictionaries Inc., New York, 1996 Comment: "Ceramics";
* Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
* Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
* Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
Category:Materials database
Hard silk

==Description== 
**to be done**
== Synonyms and Related Terms ==
ecru; gum silk
==Resources and Citations==
* M.Brooks, S.O'Conner, J.McDonnell "The Application of Low-energy X-radiography in the Examination and Investigation of Degraded Historic Silk Textiles" ICOM Preprints, Edinburgh, Vol. II, p.670-79, 1996.
Category:Materials database
Hard solder

== Description ==
A solder that fuses at high temperatures. Hard solder melts at 650 C or above. It is usually composed of a brass alloy, hence the name brazing is used for joining two metals with hard solder. Another type of hard solder is composed of a copper silver alloy. These hard solders that contained silver and were also called silver solders.
== Synonyms and Related Terms ==
brazing solder; brazing alloy; silver solder; Hartlot (Deut.); hard soldeer (Ned.)
==Resources and Citations==
* Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
* David C. Scott, Metallography and Microstructure of Ancient and Historic Metals, The Getty Conservation Institute, Los Angeles, 1991
* Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
* Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
* Encyclopedia Britannica, http://www.britannica.com Comment: "Brazing." Accessed 3 Sept. 2004.
* Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000 Comment: requires temperatures of 750-900 C
Category:Materials database
Hardener

== Description ==
An unstandardized name for a substance that is mixed with another to make the second material harder and more durable. Hardeners are used in paints, varnishes, adhesives, cements, and metals. A hardener may also be added to a photographic emulsion to raise its melting point. Other more specific names for materials that may be considered hardeners are: catalyst, accelerator, drier, or filler.
==Resources and Citations==
* Theodore J. Reinhart, 'Glossary of Terms', Engineered Plastics, ASM International, 1988
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
* Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
* Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
* Conservation termlist at www.hants.org.uk/museums
Category:Materials database
Hardness (solids)

== Description ==
A property of solids that indicates the materials resistance to abrasion and deformation. Various methods are used to characterize hardness, the oldest of which is the Mohs' hardness scale for minerals. The Mohs' scale is based on the ability of a harder mineral to scratch the surface of a softer one. In metallurgy, hardness is measured as the resistance of a material to indentation by another material. The Brinell and Rockwell hardness measurements use either a steel, tungsten carbide, or diamond ball which is pressed onto the testing material with a known load. then the resultant size and depth of the indentation is measured. Other methods, such as Vickers, Tukon, Shore (scleroscope), Knoop, or Eberbach, use a diamond pyramid as the indentor. Durometer hardness is used for compressible materials such as rubber and plastics.
== Synonyms and Related Terms ==
Härte (Deut.); dureté (Fr.); dureza (Port.)
== Resources and Citations ==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971
* Theodore J. Reinhart, 'Glossary of Terms', Engineered Plastics, ASM International, 1988
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
Category:Materials database
Hardness (water)

== Description ==
The hardness of water is measured as the amount of total dissolved solids (TDS), such as calcium sulfate or magnesium carbonate. Hard water will leave a visible residue upon evaporation (limescale). It can also react with soaps to minimize bubble formation and to form an insoluble scum that interfers with cleaning. Hardness may be removed by distillation, by adding sodium carbonate and lime or by filtering the water. Filtration may be done with zeolites, an ion exchange column or a reverse osmosis system.
== Synonyms and Related Terms ==
Wasserhärte (Deut.); dureté (Fr.); hard water; limescale; total dissolved solids (TDS)
==Physical and Chemical Properties==
TDS scale:
* Soft water = 0-20 mg/l (calculated as calcium)
* Moderately soft = 20-40 mg/l
* Slightly hard= 40-60 mg/l
* Moderately hard = 60-80 mg/l
* Very hard = greater than 120 mg/l
==Resources and Citations==
* Hoechst Celanese Corporation, Dictionary of Fiber & Textile Technology (older version called Man-made Fiber and Textile Dictionary, 1965), Hoechst Celanese Corporation, Charlotte NC, 1990
* Richard C. Wolbers, Nanette T. Sterman, Chris Stavroudis, Notes for Workshop on New Methods in the Cleaning of Paintings, J.Paul Getty Trust, Los Angeles, 1990
* Wikipedia: http://en.wikipedia.org/wiki/Hard_water (accessed Nov. 30, 2004)
* Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
Category:Materials database
Hardstone

== Description ==
Semiprecious minerals that are opaque, colorful and polish to a high gloss. Hardstones typically fall in the 6-7 range on the Mohs' hardness scale. They have been used since prehistoric times for personal objects. Later uses include architectural decoration, mosaics, seals, cameos, gemstones, boxes, vases, small sculptures and furniture (tables, cabinets, altars, reliquaries, etc.). Examples of hardstones includes agate, rock crystal, jasper, onyx, jade, chalcedony, lapis lazuli, carnelian, bloodstone, turquoise, and petrified wood.
== Synonyms and Related Terms ==
hardstones; pietre dure
==Resources and Citations==
* The Dictionary of Art, Grove's Dictionaries Inc., New York, 1996 Comment: "Hardstones"
* Tom Rowland, Noel Riley, A-Z Guide to Cleaning, Conserving and Repairing Antiques, Constable and Co., Ltd., London, 1981
Category:Materials database
Hardware cloth

== Description ==
A wire screen made of galvanized steel. Hardware cloth is available in meshes ranging from 0.25 to 0.5 inches across. Hardware cloth is used for coarse strainers, animal cages, fencing, and to form supporting structures for plaster.
== Synonyms and Related Terms ==
wire cloth; wire lath; metal fabric; tela metálica (Esp.)
==Resources and Citations==
* Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
* Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
Category:Materials database