Seventh type. Concentric circular lines of the form of a spiral or volute.—The central beginning of the spiral line is usually, but not always, marked by a cup-like excavation.
It often occurs that two, three, or more of these various types are found on the same stone or rock, a fact indicating that they are intimately allied to each other.
Prof. Simpson presents what he calls “the chief deviations from the principal types” reproduced here as Fig. 148.
Fig. 148.—Variants of cup sculptures.
The first four designs represent cups connected by grooves, which is a noticeable and frequently occurring feature. In Fig. 149 views of sculptured rock surfaces at Auchnabreach, Argyleshire, Scotland, are given. Simple cups, cups surrounded by one ring or by concentric rings, with radial grooves and spirals, appear here promiscuously mingled. Fig. 150 exhibits isolated as well as connected cups, a cup surrounded by a ring, and concentric rings with radial grooves, on a standing stone (menhir), belonging to a group of seven at Ballymenach, in the parish of Kilmichael-Glassary, in Argyleshire, Scotland.
Fig. 149.—Cup sculptures at Auchnabreach, Scotland.
