the use of the new varnishes
61Historic paint analysis — is the scientific analysis of architectural finishes, including not only paints but also metallic finishes and clear and translucent finishes used on historic buildings. The primary purpose of such analysis is to determine the color of the finish …
62gymnosperm — gymnospermism, n. /jim neuh sperrm /, n. Bot. a vascular plant having seeds that are not enclosed in an ovary; a conifer or cycad. Cf. angiosperm. [1820 30; < NL gymnospermae name of type. See GYMNO , SPERM] * * * Any woody plant that reproduces… …
63Epoxy — In chemistry, epoxy or polyepoxide is a thermosetting epoxide polymer that cures (polymerizes and crosslinks) when mixed with a catalyzing agent or hardener . Most common epoxy resins are produced from a reaction between epichlorohydrin and… …
64Chlorhexidine — Systematic (IUPAC) name N ,N hexane 1,6 diylbis[N (4 chlorophenyl)(imidodicarbonimidic diamide)] Clinical data Trade names …
65cobalt processing — Introduction preparation of the metal for use in various products. Below 417° C (783° F), cobalt (Co) has a stable hexagonal close packed crystal structure. At higher temperatures up to the melting point of 1,495° C (2,723° F), the… …
66Resin — Not to be confused with rosin, a particular type of resin. This article is about the plant secretion. For other uses, see Resin (disambiguation). Insect trapped in resin …
67Engineered wood — This 1966 photo shows wood waste being burned for fuel in Portland, Oregon …
68Acetanilide — IU …
69Colorado Plateau — A map of the Colorado Plateau. The …
70Treasure trove — A treasure trove may broadly be defined as an amount of gold, silver, gemstones, money, jewellery, or any valuable collection found hidden underground or in places such as cellars or attics, where the treasure seems old enough for it to be… …
