The following season they collected 663, and 307 specimens in 1975.

They spent a little under two years collecting specimens for the book.

His first attempt to collect specimens was not a success.

He used local children to help him collect specimens, and as a result discovered several new species.

However, recently collected specimens of this species were described in 2006.

He collected 12,000 specimens, thirty of which were new to science.

We'd account for everything before moving on from a camp site or where we had been collecting specimens.

He remained there for the next two years, collecting many specimens, and left in 1818.

He had collected two specimens during a voyage in 1774.

He's been collecting specimens again, you know, but he found out something really strange on this trip.