Extract from the Native Commentary to the Aṅguttara-Nikāya, ii.1,1:
Kettle of gruel: – In the pot-of-gruel torture they cut open the skull, and with a pair of tongs take up a heated iron ball, and throw it in; whereby the brains boil, and run over.
Sea-shell tonsure:–In the sea-shell-tonsure torture they first make an incision through the skin, beginning on either side of the upper lip, and continuing by the roots of the ears, and around by the neck. And drawing together all the hair into one knot, they twist it "by means of a stick until they have raised the scalp. Then they rub the dome of the skull with coarse gravel, and wash it until it presents the appearance of a polished sea-shell.
Rāhu-mouth: – In the Rāhu-mouth torture they keep the mouth open by means of a peg, and burn a candle inside. Or, beginning from the roots of the ears, they dig out the teeth, so that the blood gushes forth, and fills the mouth.
Wreath of flame:–They envelop the entire body in cloth that has been steeped in oil, and then set fire.
Hands of flame:–Having enveloped the hands in cloth that has been steeped in oil, they cause them to flame up like torches.
Blades of grass: – In the blades-of-grass torture they begin at the neck, and cut the skin downwards in blade-like strips as far as to the ankles, and then let them fall. Then they put a halter on the man, and drag him forward, so that he stumbles and falls over the blade-like strips of his own skin.
Bark-dress: – In the bark-dress torture they cut strips the same as before, leaving off at the hips; and from the hips they cut other strips, leaving off at the ankles. Then the strips of the upper part of the body form, as it were, a bark tunic for the lower part.
Black antelope: – In the black-antelope torture they drive the points of four iron stakes through the two elbows and the two knees, so that the man remains pinioned to the ground by means of these four iron stakes. Then they build a fire all around him; and in order to make the fire-surrounded black antelope, mentioned in the text, they remove the stakes from time to time, and set the man on his protruding bones. There is no torture equal to this one.
Hook-meat: – They strike him with double hooks, and thus tear away skin, flesh, and tendons.
Penny-bit: – Beginning at the top, they cut off bits of the size of a penny from the whole body by means of sharp razors, and let them fall to the ground.
Carving by caustics: – They cut the man’s body here and there with weapons, and then, by means of combs, they rub in caustic, so that skin, flesh, and gristle trickle away, and only the bony skeleton remains.
Pivot: – Having made him lie down on one side, they drive an iron stake through his ear, and make him fast to the ground. Then they take him by the feet and whirl him around.
Straw-bolster: – A skilful executioner, without cutting through the skin, will break his bones by means of small hand-millstones, so that when lifted up by the hair, he hangs a limp mass of flesh. Then they wind him round and round with his hair, and dispose him in a coil like a straw-pad.