Following the direction of the look, Harry saw the old packing cases that he had observed earlier.

But that was what he had observed earlier, outside the gate.

This brought him to the depression, or hollow, the little valley he had observed earlier.

Without expending any effort, I'd learned that I had, after all, been observed earlier.

So, the authors began to suspect the fatty acids that they had observed earlier.

It proceeded close above the ground in the same zig-zag course which he had observed earlier.

As they were heading back to the woods, Web saw the same man standing by the horse trailer that he had observed earlier.

The slim woman whom Spock had observed earlier looked directly at him.

Supposing we had been observed earlier in the day?

This could be observed earlier in the competition, but has now practically become a rule.