In this way, the estimate of a past duration would be coloured by the sense of time accompanying the reproductive process itself.

This may very likely be the case, yet I should be disposed to attach most importance to the number of distinguishable items of experience recalled.
Our representation of the position of a given event in the past is, as I have tried to show, determined by the movement of imagination in going back to it from the present.

And this is the same thing as to say that it depends on our retrospective sense of the intervening space.

That is to say, the sense of distance in time, as in space, is the recognition of a term to a movement.

And just as the distance of an object will seem greater when there are many intervening objects affording points of measurement, than when there are none (as on the uniform surface of the sea), so the distance of an event will vary with the number of recognized intervening points.
The appreciation of the distance of an event in time does not, however, wholly depend on the character of this movement of imagination.