completed a series of experiments on a solid pile of mineral ingredients, known by him to enter into the composition of the waters of Töplitz, Pullna, Egra, and Marienbad, and by passing a constant stream of pure water around every part of that column, succeeded perfectly in producing, in each case, a compound, which has the same effect on the constitution as the real mineral waters of those celebrated springs. Dr. Strüve is about to publish the result of his recent investigations on this subject.

I could not pass through Dresden without paying my respects to Professor Carus, well known to the medical and scientific world for several microscopical and physiological discoveries. Dr. Carus is a plain, unassuming man, highly accomplished, warmly devoted to his profession, and particularly well versed in comparative anatomy. He is the author of several very esteemed works in anatomy and physiology, illustrated with large folio plates, and of a treatise on Gynækologia. One of his last discoveries, with the assistance of the microscope, is that of the circulation going on in the vessels of the wings of the libellula. The instrument he uses is not possessed of very high powers, but quite sufficient for the purpose. Dr. Carus practises as an accoucheur as well as a physician, in which latter character he had lately been appointed to a situation at Court, formerly occupied by his friend and colleague, Dr. Kreisig. He introduced me into his museum of comparative anatomy, where I saw most of the preparations which had served as originals for his splendid engravings, and particularly those which illustrate and support his own discoveries. To those who cannot readily comprehend how the most trifling discovery in questions of animal life can be of use in promoting our knowledge of that mysterious phenomenon, Professor Carus's very recent observations on such minute organized beings as the larva of the smaller blue dragon fly (agrion puella),

and the discovery he has made in that insect, of a simple, yet as complete a system of circulation of the blood, with a heart for its centre, as is to be found in animals of a superior class, may not appear important, or afford much interest. Scientific men, however, look upon these researches with a far different eye, as proving that grand and immutable principle of homogeneity which has presided at the formation of all organic bodies by the great Author of Nature.* I hold myself very fortunate to have become personally acquainted at Dresden with three individuals, each so eminent in his department of learning. This little town may well be proud of having such a professional triumvirate.

In returning from my visits to my professional brethren, I noticed the work of destruction carrying on where the ramparts and fortifications of Dresden formerly stood, but which are now levelling, and made to give way to a very handsome external boulevard, that will encircle the whole of the town. Following the direction of some of the principal streets on purpose to observe, better than I had hitherto done, the external character of the city, I remarked that, though clean, the streets are sombre, and that a foot pavement is scarce. There are no drains or subways, and water-courses, and the rain, and every thing from the houses is suffered to stagnate in large square cesspools, which are to be met with at short distances from each other in the centre of the street, covered with wood. The covers are lifted up once a and the cloaca maxima emptied at particular times of

year,

I would strenuously recommend to those of my readers who feel any interest in these matters, to peruse, as a specimen of the clearest, and most successful method of inductive inquiry, illustrated by experimental research, most distinctly narrated, the professor's late work which has been translated into French, under the title of "Quelques Considérations sur la Circulation à l'occasion de la Découverte d'une Circulation activée par un Coeur chez les Insectes."

their filthy contents, in every part of the town, thus creating almost a plague throughout its atmosphere. I observed here and there some good specimens of the Saxon arch, the gateway, and the peculiar structure of the summit of the houses, the elevation of which gains much by the prodigal admixture of the oriel window and the turreted apartments at all the corners. In their interior, the same system of voisinage exists here as in Paris, several families living in the same house, and frequently two families on the same floor. The keeping of a carriage is a trifling consideration. There is a species of calash somewhat in the style of those at Brussels, which is neatly built, and sold for a mere trifle; most of the fiâcres are of this description. On the whole, as I before stated, there would be every temptation for settling at Dresden, were it not that the bread is bad and the water worse; but then, en revanche, the wines of the country, and even French wines, are in abundance and very reasonable, and may therefore be substituted for the impure element.

There are two other churches in Dresden of which I ought to give a short account; but my courage fails me, when I consider that I have but little to say that is new, and still less that is worth repeating. The Frauen Kirche, or the Nôtre Dame of Dresden, is said to be something quite extraordinary. It is a vast and almost circular edifice, placed in the centre of a small square, with an uglyssime cupola, that looks like a parody on that of St. Peter. It is said that its architect, Monsieur Bähr, built it d'après le plan of the Roman church of that Saint. It is, indeed, après; for the distance between them is immeasurable. The other church is the Kreutz Kirche, the tower of which, 305 feet high, is perhaps its only remarkable feature.

Hufeland of Berlin, had at one time suggested the propriety of some public place being erected in every large

town, for the purpose of watching the dead for some days, in order to obviate those dreadful accidents which are said to have frequently occurred in Germany, in consequence of too precipitate an interment. This idea was adopted by the Saxons, and the cemetery of the parochial church of Neustadt exhibits two large subterranean chambers, where the public may expose the dead bodies of their friends and relatives for a certain number of days, under the care of a particular set of men who are deputed to watch them and afford immediate assistance in case the least symptom of returning life should be observed. No expense is attached to this ceremony; yet so indifferent is the public in such matters, that for the last eighteen years there has not been an instance of a dead body being sent thither for the purpose in question. In this same cemetery there is, against and around the wall, a curious bas-relief in stone, consisting of twenty-seven figures, representing the Dance of Death, in imitation of the more celebrated composition of that kind existing at Bâsle. Among the different monuments calculated to recall the memory of eminent persons, I looked with interest upon that of Adelung, the celebrated grammarian and lexicographer of Germany.

I was not quite in a humour to relish the great Tomfoolery which obstructed my progress over the bridge and through the principal streets, after I left the abode of death. I hate crowds of all sorts, but more especially when I am forced to go through them. In doing this, in the present instance, I suddenly found myself within an ample ring, in which a number of what appeared to me to be superior officers of the Saxon army, in full dress, were playing all sorts of anticks, skipping at the sound of a band which accompanied them, and now and then throwing coloured bandrols into the air, after twirling them rapidly round their heads or their bodies, just as rope-dancers do