铁杆银钩老笔翻 力能从简意能繁——程正揆山水画赏介

文章从清代绘画发展特点入手,阐述了清代著名的山水画"遗民画家"程正揆的画风、画艺,着重介绍了其主题性手卷<江山卧游图>,以及甘肃省图书馆所藏程正揆的一幅山水画.     

Joining Loose Members of Panel Paintings

Abstract

Différentes méthodes analytiques sont expérimentées en vue de l’identification des matières colorantes naturelles utilisées dans les laques rouges anciennes.

Les spectroscopies d’absorption dans l’ultraviolet, le visible et l’infrarouge conviennent pour l’analyse des teintures sur laine.

La chromatographie en phase gazeuse permet de déterminer les hydrates de carbone et les aglycones sur un même échantillon hydrolysé.

C’est la chromatographie en couche mince qui s’est révelée la plus adéquate à l’analyse de très petits échantillons tels que des prélèvements sur enluminures de manuscrits.     

The Radiography of Panel Paintings by Electron Emission

Abstract

A straightforward technique for the restoration of metallic objects is described. With this technique the total immersion of the artifacts in the electrolytic cell is unnecessary. It can also be used for objects with localized corrosion.     

Method for Radiographing the Topography of Oil Paintings

Abstract

Polyethylene glycols (PEG) can be detected in wood by their in situ formation of coloured complex compounds. Solutions of potassium bismuth iodide/barium chloride and of bromine/potassium iodide are suitable for sprayingdirectly onto wood, and may even be used on dark-coloured wood by mixing chalk powder into the reagent. By adopting a print-off technique onto damp filter paper, the distribution of PEG in wood can be demonstrated even more exactly, even from very small samples. Print-offs are developed into differentiated coloured pictures withsolutions of potassium bismuth iodide/barium chloride, iodine/potassium iodide or ammonium cobalt (II) thiocyanate.     

The Use of Moisture Barriers on Panel Paintings

Abstract

Deterioration of paintings is effected by chemical, physical and biological agents. Activity of these agents generates mechanical stresses which result in cracking, cupping, cleavage and flaking of the paint film. Internal mechanical stress appears to be primarily responsible for premature or drying cracks in paint. Stresses external to the paint cause age cracks which penetrate both paint and ground. The literature explaining the origin and characteristics of these cracks is reviewed. Although premature cracking can only be avoided by instructing the artist in proper use of materials, age or mechanical cracking can presently be prevented by environmental controls and careful handling. Present methods of reinforcement of paintings in general only partially stabilize them against environmentally generated stresses. Further research appears necessary for more complete understanding of the stresses old paint can withstand and of the forces exerted by the shrinking and swelling of textile and wooden supports. Search for and testing of more physically and chemically inert support materials are suggested.     

A Vacuum Envelope for Treating Panel Paintings

Abstract

A method is described for the removal of certain black and white deposits found on ancient South Italic and Etruscan pottery. The very hard white deposits are softened and dispersed by the use of chelating agents in a hot, caustic solution. The black stains are removed by the use of hydrogen peroxide in several concentrations.     

Australian Communication

TELEVISION TODAY AND TOMORROW: IT WON'T BE WHAT YOU THINK by Gene F. Jankowski and David C. Fuchs (New York: Oxford University Press, 1995—$25.00, ISBN 0–19–507487–4, 237 pp.)

THE REMAKING OF RADIO by Vincent M. Ditingto (Newton, MA: Focal Press, 1995—$24.95, paper, ISBN 0–240–80174–1, 142 pp.)

SUPER‐HIGH‐DEFINITION IMAGES: BEYOND HDTV by Sadayasu Ono, et al. (Norwood, MA: Artech House, 1995—price not given, ISBN 0–89006–674–4, 154 pp.)

AN INTRODUCTION TO DIGITAL AUDIO by John Watkinson (Newton, MA: Focal Press, 1994—$34.95, paper, ISBN 0–240–51378–9, 392 pp.)

DIGITAL MULTIMEDIA CROSS‐INDUSTRY GUIDE edited by Philip V.W. Dodds (Newton, MA: Focal Press, 1995— $49.95, ISBN 0–240–80205–5, 321 pp.)

TELECOMMUNICATIONS MANAGEMENT: BROADCAST/CABLE AND THE NEW TECHNOLOGIES by Barry L. Sherman (New York: McGraw‐Hill, 1995—price not given, ISBN 0–07–056698–4, 431 pp.)

FILM INTO VIDEO: A GUIDE TO MERGING THE TECHNOLOGIES by Richard H. Kallenberger and George D. Cvjetnicanin (Newton, MA: Focal Press, 1994—$44.95, paper, ISBN 0–240–80215–2, 369 pp.)

THE CABLE NETWORKS HANDBOOK edited by Robert G. Picard (Carpelan Publishing, PO Box 2726, Riverside, CA 92516–2726—$39.95, no ISBN given)

AMERICA'S WATCHING: PUBLIC ATTITUDES TOWARD TELEVISION 1995 (Washington: National Association of Broadcasters, 1995—free on request, paper, no ISBN given, 40 pp.)

RADIO: THE FORGOTTEN MEDIUM edited by Edward C. Pease, and Everette E. Dennis (New Brunswick, NJ: Transaction Books, 1995—$19.95, paper, ISBN 1–56000–798–2, 213 pp.)     

Australian Communication

PRAY TV: TELEVANGELISM IN AMERICA by Steven Bruce (New York: Routledge, Chapman &; Hall, 1990–$16.95, paper, ISBN 0-415-03098-6, 272 pp.)

RELIGIOUS TELEVISION: CONTROVERSIES AND CONCLUSIONS edited by Robert Abelman and Stewart M. Hoover (Norwood, NJ: Ablex, 1990—price not given, ISBN 0-89391-643-9, 366 pp.)

THE GAME BEHIND THE GAME: HIGH STAKES, HIGH PRESSURE IN TELEVISION SPORTS by Terry O'Neil (New York: Harper &; Row [now HarperCollins], 1989—$17.95, ISBN 0-06-016019-5, 291 pp.)

GAMES AND SETS: THE CHANGING FACE OF SPORT ON TELEVISION by Steven Barnett (London: British Film Institute/Bloomington: Indiana University Press, 1990—$35.00/13.95, ISBN 0-85170-267-8 hard, 0-85170-268-6 paper, 214 pp.)

SPLIT IMAGE: AFRICAN AMERICANS IN THE MASS MEDIA edited by Jannette L. Dates and William Barlow (Howard University Press, 2900 Van Ness St. NW, Washington, DC 20008—$29.95/14.95, ISBN 0-88258-035-3 hard, 0-88258-063-9 paper, 492 pp.)

TELEVISION AND WOMEN'S CULTURE: THE POLITICS OF THE POPULAR edited by Mary Ellen Brown (Newbury Park, CA: Sage, 1990—$45.00/18.95, ISBN 0-8039-8228-3 hard, and 0-8039-8229-1 paper, 244 pp.)

SOCIAL AND CULTURAL ASPECTS OF VCR USE edited by Julia R. Dobrow (Hillsdale, NJ: Lawrence Erlbaum, 1990—$29.95, ISBN 0-8058-0499-4, 219 pp.)

ADVENTURES ON PRIME TIME: THE TELEVISION PROGRAMS OF STEPHEN J. CANNELL by Robert J. Thompson (New York: Praeger, 1990—$37.95, ISBN 0-275-93330-X, 143 pp.)     

Calcium Sulphate Minerals in the Grounds of Italian Paintings

Abstract

Polyurethane foaming resins have been found more satisfactory for mounts than wood, polystyrene foam and perspex. The procedure for making a mount is described. The time required to make a single mount is about a week. Additional mounts can then be made in days.     

Conservation of a Chinese gu at the Canadian Conservation Institute

Abstract

Conservation and technical issues pertaining to the investigation of six mediaeval Spanish ceramic lustre fragments are reported. Assessment of methods and materials to replicate the lustre glazes indicates that the spray application of nacreous (pearlescent) pigments in combination with conventional inorganic pigments and transparent colorants in an acrylic lacquer gives good results. The salient optical features oflustre glazes and nacreous pigments are discussed. Scanning electron microscopy in conjunction with electron diffraction studies are employed to characterize the glaze and ceramic body composition of the fragments. Transmission electron microscopy indicates that a uniform dispersion of copper crystallites, c. 2-4nm in diameter, is responsible for the lustre effect in one sherd.