Here concern was solely with the outer shape and size and weight and measurement of things, and how the size and shape and weight of one interacted with another.
"Eight Keys to Eden"
Mark Irvin Clifton
The populations represented by our sixfold division interacted more frequently for economic, social, and religious purposes with people within the area than they did with those from other areas.
"Shoshone-Bannock Subsistence and Society"
Robert F. Murphy Yolanda Murphy
Certainly the populations of this section of Idaho merged, shifted, and interacted to such an extent that it would be difficult to distinguish them, although "one bunch," two chiefs, Captain Jim and Eagle Eye, were reported for the area.
"Shoshone-Bannock Subsistence and Society"
Robert F. Murphy Yolanda Murphy