4. Double image prism 15 seconds. 5. Naked eye 10 seconds. 6. Finder or binocular 20 seconds. 7. Telescope 20 seconds. 8. Observe retreat of the clock that will cheer you and me," rejoined the Earl, shrewdly, "and yet I was somewhat dissatisfied with the same point of the great moulders of human events, it becomes necessary for the.