Some libraries contain live specimens and preserved samples of plants, referred to as an herbarium.

Contour is a crucial mission in a NASA push to understand comets, which may contain preserved samples of the materials from which the solar system formed billions of years ago.

Its abundance is less obvious from preserved samples (that are usually analyzed) because the gelatinous body disappears in the preservation process while leaving hardly any trace.

Authenticity of the preserved samples and of the elaborate accounts by the medieval Islamic historians regarding the events surrounding the letter has also been questioned by modern historians.

One, for instance, contained diagrams showing the theory of one school of naturalists about the proper classification of Kforrian life-forms, with preserved samples of small plants and animals to illustrate.

On a final note, a preserved sample of Peter's blood is found 400 years later and becomes the basis for the Super-Soldier formula that would create Captain America.

It is likely that Etzlaub published them every year, although the preserved samples are not continuous.

Three decades later, preserved samples of the agent were shown to be rotavirus.

She was not known to be ill before the crash, and a preserved sample of her blood, taken before she had any transfusions, was free of the virus.

There are no preserved samples of the dead birds, the reservoir itself has been emptied and earlier investigations produced competing explanations of what went wrong.