We remained at Mercedes to enjoy an excellent lunch provided for us by the station master, who resides there with his family, as going on to Chivilcoy would have entailed the loss of another day, and having to sleep there with probably limited accommodation. The station at Mercedes is a very fine one, with iron pillars and a corrugated roof, brought from England; also a large roadside shed for the locomotives, workshops, &c. The large area of ground occupied by the station must be with a view to future requirements. Omnibuses and a diligence were waiting to convey passengers to the town, which is near the station, and to distant places. We did not go into the town, as it looked rather dusty and our time was limited, having to return by a special train at 1.30.

We rode some distance back on the engine, making twenty-one miles in thirty-five minutes over part of the campo, and reached the Parque station at Buenos Ayres about five o'clock, or three and half hours for a distance of about sixty miles; but we had to wait at two stations for the up train to cross, besides calling at most of the other stations, all of which involved a good deal of delay. The engines have to water frequently, and there was a scarcity of coal, so they were obliged to burn slack, mixed with cinders, causing some difficulty in keeping up steam. It must be admitted that the Government have shown real energy and determination in prosecuting this railway, which is of great benefit to the Province, and I believe well managed, yielding a good return for the capital invested. The rails used on this line are the Barlow, and they are in very excellent condition after being down several years. The line from Mercedes to Chivilcoy is laid with Griffin's rails, which I understand are not so rigid as the Barlow. There is no wood suitable for sleepers in this part of the country.

It is intended to carry on the line to the north end of Buenos Ayres, and to build a wharf out to the river, thus enabling the company to land and ship goods without passing through the city, which will be a great convenience and save expense, besides the advantage of opening up communications with the other railways by such a branch line. Eventually there is to be a Central Station on the beach for all the railways, so that goods and passengers can be conveyed from one to the other. As already observed, a branch is to be made from the Merlo station to the town of Lobos, and no doubt it will be carried further in that direction, so as to develop the resources of the country. All this will require time, and a large outlay of money, for which the Government is not prepared now, but it is sure to be accomplished later on, with many more urgent improvements required in this large and growing city.

We had a very fine day for our excursion, and enjoyed it much, thanks to the kindness of Mr. Emilio Castro, who made ample provision for creature comforts, and was exceedingly attentive. Mr. Allen, the engineer for the line, was also of the party, and gave us much valuable information. He has been many years out here, and with his brother, has worked his way to an important and responsible position.

In the Appendix will be found a very interesting description of the workshops of the Western Railway, which we extract from the columns of the Buenos Ayres Standard, an influential paper extensively circulated in the River Plate.

BUENOS AYRES.—SECOND NOTICE.

The more I look over this great city the more I am struck with its increase, as well as the luxury by which it has been attended, evinced in the style of building and in the large private establishments, some of which are really on a princely scale.

Speaking of public buildings, I do not much admire the opera house, called the Colon—it is badly formed and the decorations are too heavy. The gas-lights are ugly, being plain jets instead of small gas chandeliers. They give a very common-place look to the whole. The tiers of boxes look too much like boxes, and ought to be light and open, suited to the country. The entrances and corridors are also very rough and nearly as bad as the unfinished theatre at San Paulo, though the design of the latter is infinitely superior. On the other hand, the secondary theatres are cheerful little places, and the new Music Hall, built by private subscription, is a model for lightness and elegance. I attended an amateur concert there, and was much pleased; some fifty ladies and gentlemen forming the vocal strength, aided by a large instrumental orchestra. It was a sight not often seen at home, where la mauvaise honte would prevent so agreeable a gathering. The large hall was quite filled and the programme gone through most systematically. In alluding to this building, I may remark that it is precisely of the same dimensions as the new River Plate Bank, being by the same architect. This Bank occupies a large corner area of one of the most central streets in the city, and can vie in architectural effect with many of the new buildings in Lombard-street, with the advantage of being much better seen.

The churches have often been described, and the cathedral is now a finished, handsome building, very well kept up both externally and internally, and religious observances and masses are very frequent. The Clubs of Buenos Ayres hold a conspicuous place in connection with politics, and they occasionally afford opportunities for beauty and fashion to meet at the balls held in them. The Progreso occupies the first rank, the La Plata the second, and latterly a Club called Del Parque has been established. I was up the country when the Progreso ball was held, and missed the invitation, as well as that for the Temple, but attended the ball of the La Plata, where 500 or 600 ladies and gentlemen were collected; a very gay and cheerful meeting, where all appeared to feel at home and enjoy themselves. South American society has the charm of being free from the stiffness and formality which exists in aristocratic society at home. The ladies, however, add great elegance of dress to their personal graces, which are very considerable, and they dance with great ease. With reference to the female population of Buenos Ayres, the fêtes held on the anniversary of Independence (25th of May) present an excellent opportunity for seeing them to advantage out of doors. The weather was fine, and the Plaza Victoria, as well as the leading streets, was filled with well dressed ladies, particularly at night to see the fireworks. The ladies go about very freely, those who keep carriages, or can afford to hire them, generally driving a short way out of town when they are not visiting their friends. Society in Buenos Ayres is decidedly of the free and easy, friendly style, and characterised by much hospitality. The democratic element in the constitution naturally stirs up a good deal of political feeling, but I do not find this to affect the private relations of life so much as might be expected. Party spirit runs high, and the “young Republicans” especially are very bitter towards those who differ from them; but of late years political animosity has not been stained in the Argentine Confederation with crimes such as those which have prevailed at Monte Video. The continuance of the Paraguayan war and the Alliance with Brazil have lately been the great bone of contention, and shows itself on the eve of the election of a new president, on the result of which the future peace of the country may more or less depend.

I looked over the Museum, where many fine antediluvian specimens found in this country are preserved, together with a variety of curiosities in natural history, animals, birds, &c, the whole being under the superintendence of Dr. Burmeister, who is a very superior man, and I believe remains there more from his love of natural history than for the remuneration attached to the office. He has travelled much over the South American Continent.