with thegreatest fire-retarding and sound-proofmg qualities. They show noexpansion under the most extreme variations of temperature, and will not split, warp, or crack during theprogress of a fire, and have onlyto be replastered to restore to fullstrength afterward. PulpstoneGypsum Blocks are…
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![An illustration from Current architecture: published in connection with a joint exibition [sic] held in Boston November 1916 (1916)](https://img.insideoutlibrary.com/img/200/ia-currentarchitect1916bost-104-161.webp)
