But what it has lost in size it has gained in use.

You say we must be careful not to get lost in size.

Then at least there is no danger of our getting lost in size.

And to be lost in size-

And then again he remembered his situation- lostin size, helpless, without the power to rejoin his friends.

"We could get lost in size just as easily as in space, couldn't we?"

He was lost - lostin size-theone thing that the Doctor, when they started down into the ring, had warned them against so earnestly.