And he made known to them the result of his observations.

Most of the key observations were made in the 1960s and 1970s.

Across these studies, a number of important observations can be made.

I would like to start by making a series of observations.

However, I should like to make a number of observations.

The total number of observations used in the paper was 20,229.

They had kept her in for one more day of observation.

Half an hour to set up and several weeks of observation.

I must be allowed to give some of my observations on the more serious and religious part.

And that's all we do know of our own observations.