The number of these spheroids is increased by the addition of gelatine.
The spheroids have a radiate structure and often show concentric dark and pale shells.
The rock seems composed of spheroids, about an inch in diameter, surrounded by a smaller amount of dark-coloured dioritic matrix.
I have already described the particles as spheroids enclosed in a membrane.
The spheroids range from a fraction of an inch to a foot in diameter, and may have a felspar crystal at the centre.
In other cases the spheroids are simply dark rounded lumps of biotite, in fine scales.
Under the level of the spheroids d, d, the horizontal main-pipe is seen, for supplying the cases with steam.
The related subject of the attraction of spheroids was also signally promoted by him.
Finally Miss Thorne walked over to the long table and curiously lifted one of the spheroids.