I think we have to reintroduce roundels to the Tardis Set. I miss them.
[Mineralogy of Maine Volume 2 By Van King 2000 Pg 142:]
U.S. Geological Survey Chemistry Laboratory group, Smithsonian Building, Washington, D.C., 1886. Back row, left to right: Frank W. Clarke, William F. Hillebrand, Thomas M. Chetard, William Hallock. Front row, left to right: Robert P. Whitfield, Frank A. Gooch, Carl Barus, Robert B. Briggs (Photo courtesy USGS Photo archives)