. Painting and painters' materials: a book of facts for painters and those who use or deal in paint materials . time,so that the outline showed through in many places. * Potash, lime and carbonate of baryta soaps most quickly redden in theair. Verdigris, lead and manganese soaps also redden, but less rapidly andin somewhat the order given. Green Carriages, 233 ^ The changes in white lead and linseed oil arerapid and inevitable. A foul, tawny yellow quicklyoverspreads the work utterly destructive of delicacyand freshness * * * * ^i^^y j^g^y^ always beenfatal to these essentials of a landscape (
. Painting and painters' materials: a book of facts for painters and those who use or deal in paint materials . time,so that the outline showed through in many places. * Potash, lime and carbonate of baryta soaps most quickly redden in theair. Verdigris, lead and manganese soaps also redden, but less rapidly andin somewhat the order given. Green Carriages, 233 ^ The changes in white lead and linseed oil arerapid and inevitable. A foul, tawny yellow quicklyoverspreads the work utterly destructive of delicacyand freshness * * * * ^i^^y j^g^y^ always beenfatal to these essentials of a landscape (Mr. Two-penny in the Quarterly Revieiv). White lead has two color changes ; it blackens onexposure to sulphur gases, and it yellows in the last change is due entirely to the oil To thesame cause is due the change of color on a carriagebody which is a little old, or has been kept from thelight. A chrome yellow light toned down becomes anolive green, as may be discovered by such a disk asthe following : The easiest method of mixing coloredlights is to place the colors on a disk and twirl From Modern Chromatics. (Z?. Appieton Co.) The difficulty with such a carriage color is not at allin the black pigment, but in the yellowed varnish overit, especially the rubbing varnish, which is probablyfull of soap. And to some degree, perhaps, in the oilwith which the black is mixed. The only possiblecure, aside from removal of the varnish, or recover-ing with new color, is sunlight. 2J^f Painting and Painters Materials, Some carriage painters use black, others asphaltum^varnish in place of rubbing varnish ; this may be ap*artial preventive, but so long as there remains oil-varnish above to yellow and below a black color,there will result a greenish tint. Sunlight changes red oil to colorlessness, for theyellow oil is apparently on the way to a red who doubt this fact should observe the in-creasingly reddish-cream changes in the color ofwhite-lead of badly lig
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishernewyo, bookyear1883
