Foreword TRADITIONAL VARNISHES: DAMMAR AND MASTICDammar and Mastic Varnishes--Hardness, Brittleness, and Change in Weight Upon Drying A Note on the Exposure of Dammar and Mastic Varnishes to Fluorescent Lamps What''s in a Name: Dammar, or Serendipity in the Library Translation of First Description of Dammar Picture Varnish by F. Lucanus in 1829 Solubility of Aged Coatings Based on Dammar, Mastic and Resin AW-2 Changes in Solubility and Removability of Varnish Resins with Age DETERIORATING EFFECTS OF LIGHTControl of Deteriorating Effects of Light Upon Museum Objects Control of Deteriorating Effects of Light Upon Museum Objects: Heating Effects of Illumination by Incandescent Lights Speeding Up Photochemical Deterioration Use of the International Standards Organization''s Blue-Wool Standards for Exposure to Light: I. Use as an Integrating Light Monitor for Illumination Under Museum Conditions Further Studies on the International Standards Organization''s Blue-Wool Standards for Exposure to Light Use of the International Standards Organization''s Blue-Wool Standards for Exposure to Light: II. Instrumental Measurement of Fading Standards in the Evaluation of Thermoplastic Resins LIGHT-INDUCED COLOR CHANGES OF PIGMENTSThe Use of Differential Spectral Analysis in the Study of Museum Objects Studies of the Darkening Vermilion by Light Identification of Traditional Organic Colorants Employed in Japanese Prints and Determination of Their Rates of Fading The Kinetics of Fading: Opaque Paint Films Pigments with Alizarin Lake and Titanium Dioxide Determination of the Specific Rate Constant for the Loss of a Yellow Intermediate During the Fading of Alizarin Lake The Fading of Some Traditional Pigments as a Function of Relative Humidity PIGMENT VOLUME CONCENTRATION AND CHALKINGCritical Pigment Volume Concentration and Chalking in Paints Problems in Retouching: Chalking of Intermediate Layers Optics of Pain Films: Glazes and Chalking The Effect of Pigment Volume Concentration on the Lightness of Darkness of Porous Paints THE COLOR WHEELRediscovery of the Wheel On the Color Space of Sigfrid Forsius 1611 Who Invented the Color Wheel? PHOTOGRAPHS OF AUTHORS POLYMERSCrosslinking of Methacrylate Polymers by Ultraviolet Radiation New Solvent-type Varnishes Studies of the Effect of Light on Protective Coatings Using Aluminum Foil as a Support: Determination of Ratio of Chain Breaking to Crosslinking Solubility and Crosslinking Characteristics of Ethylene Vinylacetate Copolymers Stages in the Deterioration of Organic Materials Stages in Deterioration: The Examples of Rubber Cement and Transparent Mending Tape Photochemical Studies of Methacrylate Coatings for the Conservation of Museum Objects PAPER DEGRADATIONThree Fundamental Aspects of Cellulose Deterioration Relation of Cellulose Chain Scission to Hot-Alkali-Soluble Content During Thermal and Photochemical Degradation of Paper The Kinetics of Cellulose Deterioration Damaging of Effects of Visible and Near-Ultraviolet Radiation on Paper Accelerated Thermal Degradation of Pulp Sheets: Effect of Beating and Importance of Humidity PAPER DARKENING AND BLEACHINGThe Darkening and Bleaching of Paper by Various Wavelengths in the Visible and Ultraviolet Bleaching by Light I: Effect of pH on the Bleaching or Darkening of Papers in the Dry and in the Immersed Condition Under Visible and Near-Ultraviolet Radiation Bleaching by Light II: Studies of the Bleaching of Thermally Discoloured Sugars and Other "Model" Compounds Influence of the Hemicellulose Fraction on Thermal and Photochemical Discoloration of Paper Darkening of Paper Following Exposure to Visible and Near-Ultraviolet Radiation OVERVIEWSScientific Examination of Artistic and Decorative Colorants Concerning the Place of Science in the Scheme of Things Great Expectations: Questions and Answers on Conservation Materials and Methods Aspects of Chemical Research in Conservation: The Deterioration Process A ROBERT FELLER BIBLIOGRAPHY INDEX.