nyuuzyou/wikis huggingface dataset:
Deafening

== Description ==
An old term for an insulating material or device used to reduce or absorb sound. Materials used for sound insulation are hair felt, foamed plastic, mineral wool, fiberboard, quilted fiber paper, peat moss, cork, and sawdust.
== Synonyms and Related Terms ==
deadening; soundproofing; sound insulation
==Resources and Citations==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971
* Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
* The Dictionary of Paper, American Paper Institute, New York, Fourth Edition, 1980
* Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
Category:Materials database
Deal

== Description ==
An old term referring to a thin board, usually out of fir or pine, used for paneling or finish flooring.
==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
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
Category:Materials database
Deathwatch beetle

== Description ==
A beetle (Xestobium rufovillosum) from the family Anobiidae. Both the deathwatch beetle adults and larvae burrow through wood in furniture, sculpture, and buildings. The adult insect is small (3-9 mm long) with a dark brown to black shell. The male deathwatch beetle produces a ticking sound by striking his head against the wood. The sound, once believed to be an omen of death, is used as a mating call while the beetle bores his way out during the summer. Its life cycle is usually 1 year but can live up to 3 years.
== Synonyms and Related Terms ==
Death Watch beetle; woodboring beetle; Xestobium rufovillosum
==Resources and Citations==
* MuseumPest.net at Link
* Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
* Encyclopedia Britannica, http://www.britannica.com Comment: "deathwatch beetle." Accessed 16 Nov. 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
Decahydronaphthalene

== Description ==
Colorless, aromatic hydrocarbon solvent. Decahydronaphthalene is a very strong solvent that dissolves oils, fats, waxes, resins, and rubber. It has been used as a substitute for turpentine, as a stain remover, and as a cleaning fluid. At one point, Decalin® was used as a varnish remover for oil paintings (Doerner 1934).
== Synonyms and Related Terms ==
Decalin® [DuPont]; decaline; hydroterpene; napthalane; naphthane; DeKalin; Kelalin
[[[SliderGallery rightalign|decahydronaphthalene.jpg~Chemical structure]]]
== Risks ==
* Moderate fire risk.
* Flammable (flash point = 58C). 
* Skin and eye irritant. 
* ThermoFisher: SDS
==Resources and Citations==
Soluble in ethanol, ether. Insoluble in water.
Composition 	C10H18
CAS 	91-17-8
Melting Point 	-43.2 C
Density 	0.870, 0.893 g/ml
Molecular Weight	mol. wt. = 138.25
Refractive Index	1.4697-1.4811
Boiling Point 	185-194 C
== Resources and Citations ==
* M.Doerner, The Materials of the Artist, Harcourt, Brace & Company, 1934.
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 2903
* CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.474
Category:Materials database
Decal paper

== Description ==
A specialty paper designed to temporarily hold a decal for transfer to a permanent surface, such as glass, ceramic, cloth, or metal. One side of the smooth surface decal paper is coated with a water soluble adhesive (gum arabic and starch) then the image is applied using the decalcomania printing process. Decal paper has a uniform finish with good wet strength.
== Synonyms and Related Terms ==
decalcomania paper; transfer paper; pottery tissue; papier à report (Fr.)
==Resources and Citations==
* The Dictionary of Paper, American Paper Institute, New York, Fourth Edition, 1980
* E.J.LaBarre, Dictionary and Encyclopedia of Paper and Paper-making, Swets & Zeitlinger, Amsterdam, 1969
* Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
Category:Materials database
Decalin

== Description ==
[DuPont] A registered trademark for a solvent composed of decahydronaphthalene. Decalin® is a very strong solvent that dissolves oils, fats, waxes, resins, and rubber. It has been used as a substitute for turpentine and as a cleaning fluid. Decalin® is used in stain removers, cleaning fluids and floor waxes. At one point, Decalin® was used as a varnish remover for oil paintings (Doerner 1934).
== Synonyms and Related Terms ==
decaline; DeKalin; hydroterpene; decahydronaphthalene; naphthalane; naphthane
== Risks ==
* Combustible. Moderate fire risk. 
* Skin and eye irritant. 
* Decalin Chemicals: MSDS
==Physical and Chemical Properties==
Soluble in ethanol, ether. Insoluble in water.
Composition 	C10H18
CAS 	91-17-8
Melting Point 	-43.2 C
Density 	0.877 g/ml
Molecular Weight	mol. wt. = 138.25
Refractive Index	1.4697-1.4811
Boiling Point 	185-194 C
== Resources and Citations ==
* M.Doerner, The Materials of the Artist, Harcourt, Brace & Company, 1934.
* 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
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 2903
Category:Materials database
Decay

== Description ==
Stone deterioration, or decay, occurs form many reasons. The physical actions of sun, rain, wind, and temperature changes cause internal stresses and surface abrasion that can result in disintegration. Additionally, the chemical actions of hydration and oxidation can slowly dissolve and weaken some stones. Also, pollutants, such as smoke, fumes, acids and particulates, can react with and degrade many stones
==Resources and Citations==
* ICOMOS-ISCS: Illustrated glossary on stone deterioration patterns
Category:Materials database
Deciduous

== Description ==
Plants, especially trees, that loose their leaves annually. Most deciduous trees are hardwood species such as maple, chestnut, oak, birch, beech, and poplar. See also hardwood, softwood, and coniferous.
== Synonyms and Related Terms ==
à feuilles caduques (Fr.); caducifolias, deciduas (Esp.); folhosa (Port.); caducifoglia (It.); hardwood
==Resources and Citations==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971
* Boise Cascade Paper Group, The Paper Handbook, Boise Cascade, Portland OR, 1989
* 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
Deckle edge paper

== Description ==
Handmade or machine-made paper with an irregular, untrimmed edge. Deckle edge paper is considered ornamental and is usually of a high quality. Handmade paper form a deckle edge when extra paper fibers flow against and under the mold frame forming a rough uneven edge. Machine-made deckle paper simulates the rough edges by either removing the edging frame prior to manufacture or by tearing the edges of the dry paper after production. 
See handmade paper.
== Synonyms and Related Terms ==
featheredge paper; deckled edge paper
==Resources and Citations==
* The Dictionary of Paper, American Paper Institute, New York, Fourth Edition, 1980
* E.J.LaBarre, Dictionary and Encyclopedia of Paper and Paper-making, Swets & Zeitlinger, Amsterdam, 1969
* Silvie Turner, Which Paper?, Design Press, New York, 1991
* A Glossary of Paper Conservation Terms, Margaret Ellis (ed.), Conservation Center of the Institute of Fine Arts, New York City, 1998
Category:Materials database
Decolorizer

== Description ==
A component that bleaches or removes the color form another. In the preparation of glass, decolorants are used to minimize the blue color generated by iron compounds in the sand. Antimony, cerium, and manganese oxides are used as glass decolorants. See also pyrolusite.
== Synonyms and Related Terms ==
decolorant; decolourizer (Br.); decolorante (Esp.); décolorant (Fr.); decolorante (It.); descolorante (Port.); glassmaker's soap
Category:Materials database
Deer

== Description ==
Any of several types of hoofed ruminant mammals of the family Cervidae including reindeer, elk, caribou, and moose. Male deer and a few females have deciduous antlers. Deer are native to all continents except Australia and Antartica. They have been hunted since prehistoric times for their meat, skin, and antlers. 
See also deer glue, deer hair, deerskin and buckskin.
== Synonyms and Related Terms ==
hjorte (Dan.); Hirsche (Deut.); ciervo (Esp.); cervidés (Fr.); Cervidae (It., Port.); hertachtigen (Ned.); jeleniowate (Pol.); hjortdjur (Sven.);
== Additional Images ==
File:deerwp2.jpg|Deer
File:deer2wp2.jpg|White-tailed deer
==Resources and Citations==
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
* Encyclopedia Britannica, http://www.britannica.com Comment: "Deer." Accessed 29 Apr. 2004.
* Wikipedia: http://en.wikipedia.org/wiki/Deer (Accessed Nov. 2, 2005)
Category:Materials database
Deer Isle Green marble

== Description ==
A very dark green marble quarried on Deer Isle in Maine since before 1870 (Bucher 1996).
== Synonyms and Related Terms ==
Deer Isle marble; New England green
== Additional Images ==
File:Naval Map - Close Up.jpg|United States Navy Memorial Washington, D.C.
File:Naval Map - Paver.jpg|United States Navy Memorial Washington, D.C.
File:Naval Map - Vidal.jpg|United States Navy Memorial Washington, D.C.
File:quarry 1.jpg|Deer Isle quarry
==Resources and Citations==
* Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
Category:Materials database
Deer Isle granite

== Description ==
[New England Stone] A registered trademark for a pinkish gray, coarse-grain biotite granite quarried on Deer Isle in Maine (Bucher 1996). Deer Isle® granite, also called Stonington Pink Gray, was used for buildings and monuments.
== Synonyms and Related Terms ==
Deer Isle granite; Deer Island granite (sp); Stonington Pink Gray
== Other Properties ==
water absorption by weight = 0.3%
== Additional Images ==
File:DeerIsle_Smooth_det.jpg|Deer Isle granite
File:DeerIsle_Rough_det.jpg|Deer Isle granite
==Resources and Citations==
* New England Stone: Website
* Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
* World's most popular granites at www.findstone.com/daniel3.htm ;water absorption = 0.3% by weight
* National Building Granite Quarries Association at http://www.nbgqa.com/color.htm
Category:Materials database
Deer Isle stone

== Description ==
Name given to two types of stone quarried on Deer Isle in Maine (Bucher 1996). Prior to 1870, a very dark green marble was quarried. Later a pinkish gray, coarse-grain granite was quarried from the island. Also called Stonington Pink Gray, this biotite granite is used for building and monuments. 
See also Deer Isle Green marble and Deer Isle granite
== Synonyms and Related Terms ==
Deer Island stone
== Additional Images ==
File:quarry 2.jpg|Deer Isle quarry
File:old quarrying5.jpg|Quarrying of Deer Isle stone
File:barge 010.jpg|Blocks of Deer Isle stone
==Resources and Citations==
* Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
* National Building Granite Quarries Association at http://www.nbgqa.com/color.htm
Category:Materials database
Deer hair

== Description ==
The soft, or springy hair removed from any species of deer (family Cervidae) that are found throughout the world. Deer hair from the animals back is springy while that of the underbelly is soft. Because of its good water uptake, deer hair was used for watercolor, calligraphy, and round Oriental brushes (Pinney 1999).
== Additional Images ==
File:deerwp2.jpg|Deer
File:deer2wp2.jpg|White-tailed deer
File:00000097A.jpg|Deer hair
File:deer2large.jpg|Deer hair
==Resources and Citations==
* Zora Sweet Pinney, 'A Handle on the Terms used for Artists' Brushes: The Indispensable Tools' unpublished glossary, 1999.
* Encyclopedia Britannica, http://www.britannica.com Comment: deer" [Accessed October 16, 2003].
Category:Materials database
Deerskin

== Description ==
Leather made from the skin of a deer or other ruminants from the family Cervidae. It was used for bookbinding from the 8th century to the Middle Ages (Roberts and Etherington 1982). It has also been used for garments, such as jackets, shoe uppers, and gloves. When the outer grain is removed, these skins are generally called buckskin. Split cowhides are sometimes substituted for deerskins.
== Synonyms and Related Terms ==
deer skin; pele de veado (Port.); piel de ciervo (Esp.); cuir de daim (Fr.); daim (Fr.); pele de veado (Port.)
== Additional Images ==
File:deerwp2.jpg|Deer
File:deer2wp2.jpg|White-tailed deer
== Resources and Citations ==
* 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
* Edward Reich, Carlton J. Siegler, Consumer Goods: How to Know and Use Them, American Book Company, New York City, 1937
* American Leather Chemists Association Glossary at www.leatherchemists.org
Category:Materials database
Deet

== Description ==
An acronym for a widely used insect repellent composed of n,n-diethyl-m-toluamide. Deet is a colorless, oily liquid with a mild characteristic odor. It is not an insecticide.
== Synonyms and Related Terms ==
diethytoluamide, n,n-diethyl-m-toluamide; n,n-diethyl-3-methylbenzamide; Repel; DEET [Morflex]; m-DETA; ENT-20218; Autan, Detamide; Dieltamid; Flypel; Off; metadelphene
== Risks ==
* Combustible. Flash point = 155C. 
* Eye irritant. 
* Toxic by ingestion and inhalation of large doses and repetitive small doses. 
* Overexposure may cause hypertension, confusion, tremors, seizures, coma. 
* EPA: Safety sheet
==Physical and Chemical Properties==
Soluble in ethanol, ether, and benzene. 
Insoluble in water.
Composition 	C12H17NO
CAS 	134-62-3
Density 	0.996 g/ml
Molecular Weight	mol. wt. = 191.27
Refractive Index	1.5206
Boiling Point 	160 C
==Resources and Citations==
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 2912
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
Category:Materials database
Defoaming agent

== Description ==
An additive used to prevent or reduce gas bubbles in a liquid system. Defoaming agents are often used in the papermaking operations since the Kraft process is particularly susceptible to foamy pulp. Many types of chemicals, such as liquid surfactants as well as solid particles, help reduce surface tension and thus rupture bubbles. Examples of defoaming agents are 2-octanol, oleic acid, paraffinic waxes, amide waxes, sulfonated oils, organic phosphates, silicone oils, mineral oils, and dimethylpolysiloxane.
== Synonyms and Related Terms ==
defoamer; antifoamer (AAT); antifoaming agent; anti-foaming agents
==Resources and Citations==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 742
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Hoechst Celanese Corporation, Dictionary of Fiber & Textile Technology (older version called Man-made Fiber and Textile Dictionary, 1965), Hoechst Celanese Corporation, Charlotte NC, 1990
* Boise Cascade Paper Group, The Paper Handbook, Boise Cascade, Portland OR, 1989
* Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
* The Dictionary of Paper, American Paper Institute, New York, Fourth Edition, 1980
* Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
* Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000 Comment: preferred term = antifoamer
Category:Materials database
Deformation

== Description ==
Any alteration in the shape of a material due to the application of pressure or stress. The alteration may or may not be reversible. Strain is the measurement of deformation per unit of length.
== Synonyms and Related Terms ==
Deformation (Deut.); déformation (Fr.); deformação (Port.)
==Resources and Citations==
* ICOMOS-ISCS: Illustrated glossary on stone deterioration patterns
* Hoechst Celanese Corporation, Dictionary of Fiber & Textile Technology (older version called Man-made Fiber and Textile Dictionary, 1965), Hoechst Celanese Corporation, Charlotte NC, 1990
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
* Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
Category:Materials database
Degame

== Description ==
A Cuban hardwood tree, Calycophyllum candidissimum, with hard, smooth, yellow-color wood. It is used for structures, millwork, carving, fishing rods, and archery bows.
== Synonyms and Related Terms ==
lemonwood; lancewood; degami; Calycophyllum candidissimum
==Resources and Citations==
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 436
* Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
Category:Materials database
Degradation

== Description ==
A gradual and non-reversible decomposition of the chemical structure and physical properties of a material with time. Degradation may be a result of weathering, oxidation, heat, sunlight, bacterial action, pollutants, or human activity.
== Synonyms and Related Terms ==
Degradation (Deut.); dégradation (Fr.); altération (Fr.); deterioration: weathering
==Resources and Citations==
* ICOMOS-ISCS: Illustrated glossary on stone deterioration patterns
* 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
* ASTM, Standard Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials, Annual Book of ASTM Standards, Section 14, General Methods and Instrumentation, ASTM, G113, 1371-1373, Sep-94
* Hoechst Celanese Corporation, Dictionary of Fiber & Textile Technology (older version called Man-made Fiber and Textile Dictionary, 1965), Hoechst Celanese Corporation, Charlotte NC, 1990
* Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
* Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
Category:Materials database
Degras

== Description ==
A thick, smelly grease extracted from wool with solvent. Degras is the main source for the production of lanolin. Another type of degras, known as moellon degras, is the excess oxidized oil that is pressed out of chamois leather after its treatment with cod liver oil. Both types of degras are hygroscopic. They are used for leather conditioning, belt dressing, printing inks, and specialty soaps.
== Synonyms and Related Terms ==
suarda (Esp.); suintina (Esp.); cod oil; wool grease; tanning grease; leather grease; moellon degras
==Physical and Chemical Properties==
* Soluble in ethanol, trichloroethylene.
* Density = 0.932-0.945 g/ml
==Resources and Citations==
* Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 880
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
* American Leather Chemists Association Glossary at www.leatherchemists.org
Category:Materials database
Degree of polymerization

== Description ==
The degree of polymerization (DP) is the number of monomers in the polymer molecule. The degree of polymerization, or chain length, of a polymer affects many of its properties, such as solution viscosity, density, strength, flexibility and porosity.
== Synonyms and Related Terms ==
DP; grado de polimerización (Esp.); degré de polymérisation (Fr.); gradi di polimerizzazione (It.); grau de polimerização (Port.)
==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
* 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
Degumming

== Description ==
The removal of gum, sericin, from raw silk by boiling the yarn or fabric in an alkaline soap solution.
== Synonyms and Related Terms ==
desgomado (Esp.); ontgomming (Ned);
==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
* Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
Category:Materials database
Dehumidify

== Description ==
The reduction in the amount of moisture in the atmosphere. A device that removes water vapor is called a dehumidifier or drier. Two types of driers can be used: 1) a refrigeration type and 2) a chemical desiccant or deliquescent. A refrigeration type drier cools the air below its dew temperature to condense the water wapor to a liquid. Desiccants and deliquescents adsorb water vapor from the air. Examples are silica gel, activated alumina, molecular sieves, glycerol, calcium chloride, and potassium carbonate.
== Synonyms and Related Terms ==
entfeuchten (Deut.); déshumidifier (Fr.); desumidificar (Port.)
==Resources and Citations==
* Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
Category:Materials database
Dehydration

== Description ==
1) (physics) The removal of greater than 95% of the liquid water in a material. Dehydration is usually done by heating, freezing, or desiccation. 
2)(chemistry) A chemical reaction that results in the loss of one or more water molecules (H2O) from a chemical compound.
== Synonyms and Related Terms ==
drying; dewatering; desiccation; Entwässerung (Deut.); déshydratation (Fr.); desidratação (Port.)
==Resources and Citations==
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
Category:Materials database