J. Spencer Northcote, A visit to the Roman catacombs (1891)
“ Time was, indeed, when learned men shrank from this conclusion, and suggested, that though unquestionably they were used as burial-places, yet perhaps this was only an afterthought, and that they may have been originally designed for something else. The building of Rome, it was said, must have required vast quantities of stone and of sand to make cement; perhaps, therefore, in the Roman Catacombs we have only lit upon a certain number of exhausted, or rather deserted, sandpits and quarries, which later generations availed themselves of, for economy’s sake, as places of burial. ”
