[1][2] Carcasses were shot from howitzers, mortars, and other cannons to set fire to buildings and defences; on impact, the shell shattered, spreading its incendiary filling around the target.
The carcass shell as used by the Royal Navy in the 18th and early 19th century, most famously in the attack on Fort McHenry, was a hollow cast iron sphere weighing 190 pounds (86 kg).
Between the folds of the cords, he made holes, inserted copper tubes, and filled them half full of powder and lead bullets, packing it in with a tow.
The internal shell's aperture was then plugged up, and it was immersed in a mixture of 4 parts of melted pitch, 20 of rosin, 1 of oil of turpentine, and as much ground gunpowder as was needed to reduce it to the consistency of a paste.
[2] Carcass shells as used by the Royal Navy from the 18th to the 19th centuries were filled with a mixture of saltpeter, sulfur, rosin, sulfide of antimony, tallow and turpentine.