absolute time when coming from America to England, or when going from England to America? The difference is far too slight to attract either his attention or that of his employers; yet it really is the case that he obtains more good things in the former of these cases than in the latter. His days are shorter on the homeward than on the outward voyage; and if he receive so much provisions and pay per day, he interprets day as it is to him on shipboard. When in harbor, say at Liverpool, a day is, to him as to every one else who is stationary like himself, a period of definite length; but when he travels Eastward or Westward, his days are variable in length. When he travels West, he and the sun run a race; the sun of course beats; but the sailor accomplishes a little, and the sun has to fetch up that little before he can complete what foot-racers call a lap. In other words, there is a longer absolute time between noon and noon to the sailor going West, than to the sailor ashore. When he travels East, on the contrary, he and the sun run toward each other; insomuch that there is less absolute time in the period between his Monday's noon and Tuesday's noon than when he was ashore. The ship's noon is usually dinner-time for the sailors; and the interval between that and the next noon (measured by the sun, not by the chronometer) varies in length through the causes just noticed. Once now and then there are facts recorded in the newspapers which bring this {128} truth into prominence--a truth demonstrable enough in science, but not very familiar to the general public. When the _Great Eastern_ made her first veritable voyage across the Atlantic in June, 1860, she left Southampton on the 17th, and reached New York on the 28th. As the ship was going West, more or less, all the while, she was going with or rather after the sun; the interval was greater between noon and noon than when the ship was anchored off Southampton; and the so-called eleven days of the voyage were eleven long days. As it was important, in reference to a problem in steam navigation, to know how many revolutions the paddles made in a given time, to test the power of the mighty ship, it was necessary to bear in mind that the ship's day was longer than a shore day; and it was found that, taking latitude and longitude into account, the day on which the greatest run was made was nearly twenty-four and a half hours long; the ship's day was equal to half an hour more than a landsman's day. The other days varied from twenty-four to twenty-four and a half. On the return voyage all this was reversed; the ship met the sun, the days were less than twenty-four ordinary hours long, and the calculations had to be modified in consequence. The sailors, too, got more food in a homeward week than an outward week, owing to the intervals between the meals being shorter albeit, their appetites may not have been cognizant of the difference.