3 adjectives to describe delvers

I wonder what Mrs. Grundy would say, could her Argus-eyes penetrate to the spot, where we,bound to "die of roses in aromatic pain,"in miners'-garb, masculine and muddy, sit on stones with earthy delvers, more than six hundred feet under ground,where the foot of woman has never trod before, nor the voice of woman echoed,and sip, with the relish of intense thirst, steaming black tea from an old tin cup!

That will account for this restless delver's extraordinary talismanic renown.

These were filled for me by expert hands with whatever I might require for my task, and a screen shut off my corner from the corridor through which at times perambulated Roosevelt, and other secluded delvers, intent on early Gaelic literature and what not.

3 adjectives to describe  delvers