"But," replied the official, "how could we possibly have time to indulge in curiosity? We have to sort hundreds of these papers in an hour. We have just time to look at the address, place them in the proper box, and touch the spring which sets the electric current at work. If secrecy were needed a cipher would easily secure it, for you will observe that by this telegraph whatever is inscribed on the sheet is mechanically reproduced; and it would be as easy to send a picture as a message."

I learnt that a post of marvellous perfection had, some thousand years ago, delivered letters all over Mars, but it was now employed only for the delivery of parcels. Perhaps half the commerce of Mars, except that in metals and agricultural produce, depends on this post. Purchasers of standard articles describe by the telegraph-letter to a tradesman the exact amount and pattern of the goods required, and these are despatched at once; a system of banking, very completely organised, enabling the buyer to pay at once by a telegraphic order.

When Esmo had finished his business, we walked down, at my request, to the port. Around three sides of the dock formed by walls, said to be fifty feet in depth and twenty in thickness, ran a road close to the water's edge, beyond which was again a vast continuous warehouse. The inner side was reserved for passenger vessels, and everywhere the largest ships could come up close, landing either passengers or cargo without even the intervention of a plank. The appearance of the ships is very unlike that of Terrestrial vessels. They have no masts or rigging, are constructed of the zorinta, which in Mars serves much more effectively all the uses of iron, and differ entirely in construction as they are intended for cargo or for travel. Mercantile ships are in shape much like the finest American clippers, but with broad, flat keel and deck, and with a hold from fifteen to twenty feet in depth. Like Malayan vessels, they have attached by strong bars an external beam about fifty feet from the side, which renders overturning almost impossible. Passenger ships more resemble the form of a fish, but are alike at both ends. Six men working in pairs four hours at a time compose the entire crew of the largest ship, and half this number are required for the smallest that undertakes a voyage of more than twelve hours.

I may here mention that the system of sewage is far superior to any yet devised on Earth. No particle of waste is allowed to pollute the waters. The whole is deodorised by an exceedingly simple process, and, whether in town or country, carried away daily and applied to its natural use in fertilising the soil. Our practice of throwing away, where it is an obvious and often dangerous nuisance, material so valuable in its proper place, seemed to my Martial friends an inexplicable and almost incredible absurdity.

As we returned, Esmo told me that he had been in communication with the Camptâ, who had desired that I should visit him with the least possible delay.

"This," he said, "will hurry us in matters where I at any rate should have preferred a little delay. The seat of Government is by a direct route nearly six thousand miles distant, and you will have opportunity of travelling in all the different ways practised on this planet. A long land-journey in our electric carriages, with which you are not familiar, is, I think, to be avoided. The Camptâ would wish to see your vessel as well as yourself; but, on the whole, I think it is safer to leave it where it is. Kevimâ, and I propose to accompany you during the first part of your journey. At our first halt, we will stay one night with a friend, that you may be admitted a brother of our Order."

"And," said I, "what sort of a reception may I expect at the end of my journey?"

"I think," he answered, "that you are more likely to be embarrassed by the goodwill of the Camptâ than by the hostility of some of those about him. His character is very peculiar, and it is difficult to reckon upon his action in any given case. But he differs from nearly all his subjects in having a strong taste for adventure, none the less if it be perilous; and since his position prevents him from indulging this taste in person, he is the more disposed to take extreme interest in the adventures of others. He has, moreover, a great value for what you call courage, a virtue rarely needed and still more rarely shown among us; and I fancy that your venture through space has impressed him with a very high estimate of your daring. Assuredly none of us, however great his scientific curiosity, would have dreamed of incurring such a peril, and incurring it alone. But I must give you one warning. It is not common among us to make valuable gifts: we do not care enough for any but ourselves to give except with the idea of getting something valuable in return. Our princes are, however, so wealthy that they can give without sacrifice, and it is considered a grave affront to refuse any present from a superior. Whatever, then, our Suzerain may offer you—and he is almost sure, unless he should take offence, to give you whatever he thinks will induce you to settle permanently in the neighbourhood of his Court—you must accept graciously, and on no account, either then or afterwards, lead him to think that you slight his present."

"I must say," I replied, "that while I wish to remain in your world till I have learnt, if not all that is to be learnt, yet very much more than I at present know about it, the whole purpose of my voyage would be sacrificed if I could not effect my return to Earth."

"I suppose so," he answered, "and for that reason I wish to keep your vessel safe and within your reach; for to get away at all you may have to depart suddenly. But you will not do wisely to make the Prince suspect that such is your intention. Tell him of what you wish to see and to explore in this world; tell him freely of your own, for he will not readily fancy that you prefer it to this; but say as little as possible of your hopes of an ultimate return, and, if you are forced to acknowledge them, let them seem as indefinite as possible."