<div class="description">
Written under the pseudonym, "Technicus," this work was intended for the busy chemist, manufacturer, or merchant as a straightforward reference to answer questions regarding how to test a pigment and determine its properties. The work includes chapters regarding the examination of a given pigment's specific gravity, opacity, and solubility, the platinum wire flame test, pigment extraction, and pigment specifications by color. An informational pamphlet, Colors in Oil, is attached to the rear board of the book. This pamphlet is a "brief outline of the processes and raw materials used in the manufacture of the principal dry colors." The pamphlet highlights in particular the manufacture of paints sold by the McDougall-Butler Co., a New York-based paint company.</div>
1924<div style="display: none;">date QS:P571,+1924-00-00T00:00:00Z/9</div>
This file was contributed to Wikimedia Commons by <a href="https://en.wikipedia.org/wiki/en:Science_History_Institute" class="extiw" title="w:en:Science History Institute"><span title="library, museum, and archive in Philadelphia, United States">Science History Institute</span></a> as part of a cooperation project. The donation was facilitated by the <a href="https://en.wikipedia.org/wiki/Digital_Public_Library_of_America" class="extiw" title="w:Digital Public Library of America">Digital Public Library of America</a>, via its partner PA Digital.<span style="text-align:left">
<ul><li><a rel="nofollow" class="external text" href="https://digital.sciencehistory.org/works/skkws2f">Record in source catalog</a></li>
<li>DPLA identifier: <a rel="nofollow" class="external text" href="https://dp.la/item/e3df039f9ba26744125b3d85807d25d9">e3df039f9ba26744125b3d85807d25d9</a></li>
<li>Science History Institute identifier: padig:SHI-skkws2f</li></ul></span>