However, there were not very many men in our expedition.

It was days before he or others in the expedition knew what they had.

That was early in the expedition, while they were within a week of the capital.

A lot of people who aren't scientists wanted to be involved in the expedition.

It was in the African expedition that he first came to the front.

He has taken time out from his medical career over the years to participate in various expeditions.

At the age of 21, he participated in his first expedition, which led him to Russia.

"I am checking for the names of those in the expedition."

Several scientists had died while studying it in the first expedition.

He returned to explore the river again in other expeditions.