Unfortunately, by 195 Piltdown Man Hoax--an explanation of one of the greatest frauds in the history of science This link takes you to an audio file at an external website.To return here, you can click the "back" button on your browser program.
It contained tools and chemicals that could have been used to modify the ape jaw and human skull to give them the appearance of great antiquity.
The owner of this kit was Martin Hinton, curator of zoology at the time of the hoax.
As time passes, the organic components of bone (mostly fat) are lost primarily through bacterial action.
Since these components contain nitrogen, there is a progressive loss of that element.
If not, then at least one of them must be physically out of context.