<div class="description">
Entitled "Candle Moulding on a Large Scale," photographic reproduction depicts men working in a candle molding factory. Accompanying text describes the candle making process, consisting of wax being poured into molds submerged in hot water. When the molds are full, the hot water is replaced by cold water, helping to solidify the candles. Pistons push the solidified candles out of the molds. This plate is found within The Romance of Modern Chemistry, which is a layman's introduction to topics in chemistry. Includes a history of chemistry along with alchemy and the philosopher's stone; elements including organic, invisible, metals, acids, alkalies, and water; chemical changes such as fire, freezing and explosions; chemistry of the stars; food; electricity; solutions and crystals; as well as discoveries in chemistry.</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/v118rf50t">Record in source catalog</a></li>
<li>DPLA identifier: <a rel="nofollow" class="external text" href="https://dp.la/item/d2e3f5e60d1bd65cfcf6b6bfad1fbc26">d2e3f5e60d1bd65cfcf6b6bfad1fbc26</a></li>
<li>Science History Institute identifier: padig:SHI-v118rf50t</li></ul></span>