And one of the samples was the ancestor of the other seven.
One of the samples they took recorded a level of 13,200 p.p.b.: lead soup.
The lab's chemist reported that one of the samples contained evidence of "mineral spirits," a substance that is often found in charcoal-lighter fluid.
Then Mas Subramanian, a professor of material sciences, noticed that one of the samples that a graduate student had just taken out of the furnace was blue.
A month later, one of the samples, discovered in a mail sorting machine, contained three million anthrax spore colonies per half gram, the highest concentration among post offices in the nation, according to the Centers for Disease Control and Prevention.
Sodexo announced on 22 February that it was withdrawing all frozen beef products across most of its business following the discovery of horse DNA in one of the samples it had tested.
Here is one of the samples the "Manual" offers, as it would appear if you reproduced it in Word: Hlatky, M. A., D. Boothroyd, E. Vittinghoff, P. Sharp, and M. A. Whooley.
One of the samples was a mixed stain.
Figure 1 AFM image topography of one of the samples.
AFM topography of one of the samples (40 × 40 μm).
For one of the samples, the four methods agreed well.
