3. Upon some points there is certainly a remarkable agreement between science and Moses; but it would be an error to imagine it sufficient to substitute for six days of twenty-four hours each, six periods of time (duration unknown) in order to find a complete analogy. It would be no less error to conclude that, save the allegorical sense of a few words, Genesis and science do not follow each other step by step, and are only a paraphrase of one another.