John Burgoyne 
Treatise on the Blasting and Quarrying of Stone [PDF ebook] 
For Building and Other Purpose; With the Constituents and Analyses of Granite, Slate Limestone, and Sandstone

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. Slate. — Constituent Substances, 96. — Districts where worked, 97. Irish Slates — Results of Experiments, 97. Sandstones.-chemical Analysis, 97. And Composition, 98. — Mode of using and selecting best description for Building Purposes, 98. — Examples Of Durability of Sandstone Buildings, 99.