_Sir Isaac Newton and Voltaire on Railway Travelling_ (Vol. viii., p.
34.).--The passage in Daniel alluded to is probably the following:--"Many
shall run to and fro, and knowledge shall be increased," chap. xii. v. 4.
MR. CRAIG should send to your pages the exact words of Newton and Voltaire,
with references to the books in which the passages may be found.