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Bronze is an alloy of copper with other metals that modify its hardness, color, and ability to be cast into a detailed mold. When bronze is cast it is usually a gold color. After the casting and finishing is completed, the surface is often treated with chemicals and heat photographes which patinates the metal, coloring it green, brown, black, or a combination of the colors. Foundries usually apply waxes or other coatings to the photographes surface of a patinated outdoor bronze to protect it from pollutants. photographes This wax may wear off in time. We recommend annual maintenance by a professional conservator. The surface of the sculpture may be washed to remove pollutants and dirt, and waxed. If done annually, the rate of corrosion will be retarded (though not totally eliminated), and disfiguring rain streaks will be minimized. I collect twentieth-century furniture. How can I best preserve it? Some twentieth-century furniture was created from non-traditional materials, such as foam, plastic, and cardboard.

Glazing can be either glass or acrylic. Only glass should be used with any friable media such as unfixed pastels, charcoals, or graphite, never acrylic as it can damage the work by attracting these materials. There photographes are many brands of acrylic glazing to choose from; one with an ultraviolet filter is recommended. The frame and the mat should be deep enough to prevent the artwork from touching the glazing. A stiff backboard behind the mat protects and supports the matted artwork. It is photographes best to use non-acidic boards. A dust seal with paper or tape is also recommended. What damage results from using poor quality mat board? Avoid mat boards containing wood pulp which causes "matburn"--a darkening of the paper under the mat or at the bevel cut of the window mat. This type of stain permanently weakens the paper fibers and is not easily removed or lightened in conservation treatment.

Innocence and Experience deals principally with the shift in recent decades from a positive, hopeful vision of childhood’s purity and power to a counter-imagery of youth threatened or corrupted. The gallery exhibition includes works by Diane Arbus, Robert Gober, Mona Hatoum, and Mike Kelley. An accompanying film and video exhibition includes films and videos by Stan Brakhage, Joseph Cornell, Sadie Benning, Louis Malle, Satyajit Ray, and Arturo Ripstein. Matter investigates the new role of materials in fine arts and design, as well as its force in inspiring and guiding the creative process, by considering and connecting several distinct creative fields. Works by Joseph Beuys, Robert Morris, Gaetano Pesce, Mona Hatoum, Eva Hesse, designers Hella Jongerius and Tom Dixon, and photographer Vik Muniz are shown.