Bone

Bones are items dropped by Skeletons when they are killed. Bones were added in the Minecraft Beta 1.2 update. Skeletons drop 0-2 bones on death.

Uses
In Beta 1.4, bones can be fed to wild wolves in order to tame them. Bones can also be used to make Bone Meal, which serves two purposes: it can be used as a fertilizer for farming that immediately makes plants grow to their mature state, or it can act as a dye that makes wool white.

Crafting
Bone creates 3 bone meals when put in the crafting table.