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Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

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Page 1: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,
Page 2: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,
Page 3: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

58 NATIONAL GALLERY TECHNICAL BULLETIN VOLUME 10

Page 4: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

Brown and Black Organic Glazes, Pigments and Paints

NATIONAL GALLERY TECHNICAL BULLETIN VOLUME 10 59

Page 5: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

60 NATIONAL GALLERY TECHNICAL BULLETIN VOLUME 10

Raymond White

Page 6: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

Brown and Black Organic Glazes, Pigments and Paints

NATIONAL GALLERY TECHNICAL BULLETIN VOLUME 10 61

Page 7: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

62 NATIONAL GALLERY TECHNICAL BULLETIN VOLUME 10

Raymond White

Page 8: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

Brown and Black Organic Glazes, Pigments and Paints

NATIONAL GALLERY TECHNICAL BULLETIN VOLUME 10 63

Page 9: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

64 NATIONAL GALLERY TECHNICAL BULLETIN VOLUME 10

Raymond White

Page 10: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

Brown and Black Organic Glazes, Pigments and Paints

NATIONAL GALLERY TECHNICAL BULLETIN VOLUME 10 65

Page 11: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

66 NATIONAL GALLERY TECHNICAL BULLETIN VOLUME 10

Raymond White

Page 12: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

Brown and Black Organic Glazes, Pigments and Paints

NATIONAL GALLERY TECHNICAL BULLETIN VOLUME 10 67

Page 13: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

68 NATIONAL GALLERY TECHNICAL BULLETIN VOLUME 10

Raymond White

Page 14: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

Brown and Black Organic Glazes, Pigments and Paints

NATIONAL GALLERY TECHNICAL BULLETIN VOLUME 10 69

Page 15: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

70 NATIONAL GALLERY TECHNICAL BULLETIN VOLUME 10

Raymond White

Page 16: Brown and Black Organic Glazes, Pigments and Paints · are the bitumen pits ofUr, the bitumen springs of Zakin- thos and the asphalt lakes of Trinidad. In the context of painting,

Brown and Black Organic Glazes, Pigments and Paints

NATIONAL GALLERY TECHNICAL BULLETIN VOLUME 10 71