Not only that, but they went through eleven feet of Grouting.
"Raiding with Morgan"
Byron A. Dunn
Happily science has recently discovered a new method for the preserving of these old buildings without destroying them, and this good angel is the Grouting machine, the invention of Mr. James Greathead, which has been the means of preventing much of vanishing England.
"Vanishing England"
P. H. Ditchfield
But the Grouting machine is a modern invention, and it has only been applied to ancient buildings during the last six or seven years.
"Vanishing England"
P. H. Ditchfield