As I had been lunching with a Dutch engineer about half an hour before, and had a glass or two of champagne, this may have had something to do with my daring to give the Emperor, in his own capital, what I was afterwards told was not a bow but a brotherly recognition between potentates, and only by royal usage allowed to be so given, -- namely, swaying off the hat at arm's length level with the head, so as to infer royal equality, or something of that sort. When I narrated to some Russian friends what I had done, they told me that I need not be surprised if I received a visit from the chief of police next morning for my daring to salute the Emperor in such a style. But the Emperor was doubtless more amused than offended, and I never received the expected visit.

To anticipate a little. Soon afterwards the Emperor sent me a present of a magnificent diamond ring through his ambassador in England -- Baron Brunnow. It was also accompanied, as the Baron informed me, with the Emperor's most gracious thanks for the manner in which my steam hammer had driven the piles for his new forts at Cronstadt, which he had seen in full action. The steam-hammer pile-driver had also been used for driving the piles of the great bridge at Kieff. I next received an order for one of my largest steam hammers for the Imperial Arsenal, and it was followed by many more. It is a singular fact, as showing the readiness of the Russian and other foreign Governments to adopt at an early date any mechanical improvement of ascertained utility, that I supplied steam hammers to the Russian Government twelve months before our Admiralty availed themselves of its energetic action. The French were the first to adopt the invention; thanks to the insight of M. Bourdon, who had the opportunity of recognising its importance.

Before I leave this part of my subject, I must not omit to mention my friend Mr. Francis Baird, the zealous son of Sir Charles Baird. The latter was among the first to establish iron foundries and engine works at St. Petersburg. At the time of my visit he was far advanced in years, and unable to attend personally to the very large business which he had established. But he was nevertheless full of geniality. He greatly enjoyed the long conversations which he had with me about his friends in Scotland, many of whom I knew. He also told me about the persons in his employment. He said that the workmen were all serfs, or the sons of serfs. The Empress Catherine had given them to him for the purpose of being trained in his engine foundry, and in his sugar refinery, which was another part of the business. I had rarely seen a more faithful and zealous set of workmen than these Russian serfs. They were able and skilful, and attached to their employers by some deeper and stronger tie than that of mere money wages. Indeed, they were treated by Sir Charles Baird and his son with the kindest and most paternal care, and they duly repaid their attachment by their zeal in his service and the excellent quality of their work.

The most important business in hand at the time of my visit to the foundry was the moulding and casting of the magnificent bronze capitals of the grand portico of the Izak Church. This building is one of the finest in St. Petersburg. It is of grand proportions, -- simple, noble, and massive. It is built upon a forest of piles. The walls of the interior are covered with marble. The malachite columns for the screen are fifty feet high, and exceed everything that has yet been done in that beautiful mineral . The great dome is of iron covered with gilt copper. This, as well as the Corinthian capitals of bronze, was manufactured at the foundry of the Bairds. The tympanum of the four great porticos consisted of colossal groups of alto-relievo figures, many of which were all but entirely detached from the background. It was a kind of foundry work of the highest order, all the details and processes requiring the greatest care. To my surprise every one engaged in this gigantic and refined metal work was a serf. The full-sized plaster models which they used in moulding were executed by a resident French sculptor. He was a true artist, and of the highest order. But to see the skilful manner in which these native workmen, drawn from the staff of the Bairds' ordinary foundry workers, performed their duties, was truly surprising. It would make our best bronze statuary founders wince to be asked to execute such work. Judging from what I saw of the Russian workmen in this instance, I should say that Russia has a grand future before it.

Having satisfactorily completed all my business arrangements in St. Petersburg, I prepared to set out homewards. But as I had some business to transact at Stockholm and Copenhagen I resolved to visit those cities. I left St. Petersburg for Stockholm by a small steamer, which touched at Helsingfors and Abo, both in Finland. The weather was beautiful. Clear blue shy and bright sunshine by day, and the