Until recently the final separation of the diamond from the concentrates was made by hand picking, but even this has now been replaced by machinery, owing to the remarkable discovery that a greased surface will hold a diamond while allowing the other heavy minerals to pass over it.
It was easy for agitators to persuade the sepoys that the new cartridges were greased with the fat of animals sacred to one creed or forbidden to another, and that the British government was thus engaged in a deep-laid plot for forcing them to become Christians by first making them outcasts from their own religions.
Forrest's researches in the Government of India records that the sepoys' belief that their cartridges were greased with the fat of cows and pigs had some foundation in fact.
The introduction The of the Minie rifle, with its greased cartridges, was accompanied by no consideration of the religious prejudices of the Bengal sepoys, to whom, whether Hindus or Mahommedans, the fat of cows and pigs was anathema.
The cushions were greased and the amalgam in a state of powder spread over them.
The Eskimo lifted his weighted boat with sheer-legs made of two paddles; he also had a tackle without sheaves, formed by reaving a greased thong through slits cut in the hide of a walrus.