Laboratory tests, panels for, 149 Lampblack, 66 Laws of Paint Making, 93 Lime action on paint, 214 Linoxyn, 21 Linseed Oil, boiled, 2 Chemical action of pigments upon, 91 Table of Analyses of Various Types of, 7 tests of Driers with, 24, 25 Lithopone, 53 paint in Pittsburg tests, 136 tests at Atlantic City, 124 Lumbang Oil, 12 Magnesium Silicate, 55 Manufacturing Barytes, 55 Blue Lead, 47 Bone Black, 66 Paint Pigments, 42-68 White Lead, 42 Menhaden Oil, 12 Constants of, table, 14 Metallic Brown, 62 Microscope, use of in paint laboratory, 86 Microscopic examination of paint, preparation for, 86 measurements of paint sections, 89 Mineral Black, 68 Oils, 17 Moisture Absorption, tests in, 84 experiments with various Pigments, 83 North Dakota Paints tests, 182 test fence, 105 report of, table, 193-195