How to Manufacture Concrete Hollow Blocks

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. I am confident that~ every one who uses Cement in any form will find something useful and beneficial in these pages. To the manufacturer of Hollow-block stone as well as to the Cement manufacturer this leaflet will furnish practical instruction based upon years of experience in that line of work.