Notes on Excavations at Leacet Hill Stone Circle, Westmorland, by Joseph Robinson and R S Ferguson. P76 in volume 5 of the Transactions of the Cumberland and Westmoreland Antiquarian and Archaeological Society (1881). Their investigations found three stones that were buried on the far side of the wall, and several urns. There’s a nice little plan with a table of the sizes of the stones.
Chapter 7 on some of the Cumbrian circles is worth a look too....
18 & 21 also.