Yesterday was the most lively day I have had here. In the morning a review in the Piazza before St. Peter’s, where Avezzana, the Genoese commander, who is also an American citizen, and is now Minister of War, reviewed about 10,000 men and twenty pieces of artillery. In the evening a grand illumination of the Campidoglio, Forum, &c., all the way to the Colosseum, which was the great scene. When I entered, it was mostly dark, and a great crowd filling it, a band somewhere above the entrance playing national hymns. At the end of the great hymn, of which I don’t know the name, while the people were clapping, viva-ing and encoring, light began to spread, and all at once the whole amphitheatre was lit up with--the trois couleurs! the basement red fire, the two next stories green, and the plain white of the common light at the top. Very queer, you will say; but it was really fine, and I should think the Colosseum never looked better than it did, if not then at least afterwards, when the plain light was left, and the area got cleared. The same thing was done again for the outside. In the afternoon, I had paid my visit to Mazzini; a French envoy or agent was with him, and I had to acknowledge the triumviral dignity by waiting almost an hour in the ante-chamber. However, on the envoy’s retiring, he discoursed with me for half an hour. He is a less fanatical fixed-idea sort of man than I had expected; he appeared shifty, and practical enough. He seemed in excellent spirits, and generally confident and at ease. He asked me if I had seen anything of the pillaging, which the English papers were acquainted with; he said that any of the English residents would bear witness to the perfect tranquillity, even greater than before, which prevailed in the city (and certainly I see nothing to the contrary).