An opalic plasmonic sample, constituted by a hexagonal arrangement of metallized silica spheres, presents remarkable optical properties due to the mixing of periodic arrangement and singularities at the sphere touching points.

For this latter term, phonaesthesia is doubtless at work, since kring is also ‘the sound of a small bell’.

to line a copy book

“Why,” he protested, “it’s just a castor bean!” “It came up about a year ago,” I said. “Planted itself right where I wanted a green something. I kept it from freezing last winter. I put boxes around it to break the wind, and on cold nights I covered it with gunnysacks. Every morning I pour a coffeepotful of water on it.”