Gentlemen, you may very readily suppose that very soon after ten o'clock, this news reached the Stock Exchange; whether through the post boys or by the expresses sent up from Dover, it did reach the Stock Exchange at a little after ten o'clock. Probably you know that business commences at ten. At ten business commenced as it had left off on Saturday; the price of Omnium for some time was 27-1/2. It began extremely flat at 27-1/2--it went on 27-1/2--but in about a quarter of an hour, accounts came that an officer from Paris had arrived at Dover, and had come up in a post chaise and four to Government with this news, which was recited in detail. The Funds immediately rose to 28--28-1/2--29 and 30, and on it went till about twelve o'clock, when no letter coming from the Secretary of State to the Lord Mayor, people began to doubt its truth, and from 30 Omnium fell to 29, and was getting down, when between twelve and one o'clock there came the amplest confirmation. This, Gentlemen, you will find to be auxiliary to the main plot, and a very important auxiliary. In itself it would have been absolutely nothing. There drove through the City, a post chaise and four, with three persons in it, two of them dressed like French Officers, in blue great coats, with white linings; they wore white cockades, and their horses were decorated with laurel. As they went along they dispersed little billets announcing this news. After a kind of triumphal progress through the City, they turned to the left at Bridge Street, went over Blackfriars Bridge, quitted the main road for the New Cut, and when they had arrived near the Marsh Gate, within a hundred yards of the spot at which Colonel Du Bourg had alighted, these three gentlemen got out of their chaise, folded up their cocked hats, put on round hats, and walked off.

Gentlemen, this you may suppose, indeed we all know, produced an emotion in the City not to be described. There is nothing so contagious as popular feeling, especially on a subject of great public interest. This stamped certainty upon the news; this reached the Stock Exchange, and the funds, which had begun to droop, revived; Omnium rose to 30, 31, 32 and 32-1/2. Thus it went on for a short time, till persons having been sent to the West End of the Town, and it being found that no Messenger had arrived at the Office of the Secretary of State with this intelligence, it was discovered that this had been a gross and wicked deception; and the Funds returned to very nearly their former level. But there were very large sales made, and of course there were many persons defrauded. The members of the Stock Exchange felt it, and felt it deeply; and they appointed a Committee to investigate this business, and to ascertain who were the parties to this fraud. That Committee pursued the investigation with great industry, and they discovered that which I shall lay before you in evidence. As the underplot is the shortest, I may as well dispose of that first.--They ascertained that this second post chaise had come from Northfleet, which is, you know, near Gravesend. That Mr. Ralph Sandom, who is a Spirit Merchant, living at Northfleet, but who was at that time also like Mr. De Berenger, a prisoner within the rules of the King's Bench, and who kept within the rules just as faithfully as Mr. De Berenger did, had sent, early in the morning, to Dartford, for a post chaise and four, to be sent to him at Northfleet, and for four horses to be ready to take him on to town; and that Mr. Sandom; a Mr. Alexander M'Rae, a person in most desperate circumstances; and Mr. Lyte, who is, I believe, a little Navy Agent, and a very poor man, were the persons who had come in this post chaise; and that M'Rae and Lyte were the two persons who were dressed in the uniform of French Officers.

Gentlemen, they ascertained further, that Mr. M'Rae resided at a lodging in Fetter Lane; that on Saturday the 19th of February, he had brought into his lodgings a couple of great coats, blue lined with white, to resemble the coats of French Officers; that he had white cockades made up by his wife in the lodging, and upon enquiry being made by his hostess what all this could mean, said, that it was to take in the flats. He quitted his lodging in the afternoon of Sunday, stating that he was going down to Gravesend by water; and he returned about two on Monday, after having, as I stated, quitted the chaise at the Marsh Gate. The great coat was speedily altered, by the white lining being taken out and another lining put in its place, and the white cockades were burnt: and Mr. M'Rae, who had been in the greatest distress for money, was, in the course of that week, exulting in his success, boasting of the money he had earned by that which he had done; and on being expostulated with on the impropriety of that mode of getting money, said, "If I had not somebody else would."

Gentlemen, the Committee discovered that Mr. M'Rae was a party to this business at a still earlier period, and that it had been for some time in preparation, that he had on the 14th (the Monday preceding) written a letter to a person of the name of Vinn, appointing a meeting at the Carolina Coffee-House for the next day. On the Tuesday Vinn met him. Mr. Vinn speaks French very well, and Mr. M'Rae explained the business on which he wished to converse with him; the funds were then in a critical situation, it would be a very good thing if he would but personate a French officer, and bring some good news to Town, and that a hundred pounds were at his service. Mr. Vinn felt a little indignant at this proposal being made to him, saying that he hoped what Mr. M'Rae knew of him would have given him a different opinion of him; but Mr. M'Rae would not let Mr. Vinn go without giving him some French phrases, which you will find were the very phrases in these billets thrown out when they passed through the City. It was therefore completely ascertained that M'Rae was not only concerned as an actor in this under plot, carried on by the chaise from Northfleet to London, but that he had so long before as the Tuesday preceding, proposed to Vinn to do that which De Berenger in fact did.

The Committee afterwards ascertained, that the immediate employer of the persons in the Chaise was Mr. Holloway, a wine merchant, another defendant, who independently of his concerns with those persons, chose to have a little dealing in the funds himself, he had a small milkscore of about forty-thousand pounds omnium, which he disposed of on that 21st day of February, at a handsome profit.

Gentlemen, you will not fail to observe that this part of the plot could have had no effect but for the foundation laid by the appearance of the pretended officer at Dover and his journey to London; for a post-chaise coming through the City with white cockades and laurel branches would have had no effect except to excite laughter and derision, but for the preparation made by De Berenger in the character of Du Bourg; and when you find for the purpose of producing the same effect, such a coincidence of plan, and such a coincidence of time, the one the basis and the other the superstructure, although I shall not be able to prove all the parties meeting together, conferring together, consulting together, still it will be impossible to doubt that these are two parts of one whole; that this is, in short, not two conspiracies, but one and the same conspiracy.

Gentlemen, the enquiry respecting the chaise from Dover led to much more important results. It was the first business of the Committee to learn to what place this pretended Du Bourg went in the Hackney-coach from the Marsh-gate. They found out the Hackney-coachman, and he informed them that he was directed by Du Bourg to drive, and he did drive straight and direct to No. 13, Green-street, the house of Lord Cochrane, and it is not an immaterial consideration in this matter, a house in which Lord Cochrane had resided but three days, a ready-furnished house which he had taken of Mr. Durand, and a person must have been on intimate terms with Lord Cochrane to know where he resided on Monday, Lord Cochrane having gone into the house only on the Thursday evening preceding.

The Coachman further informed the Committee that when he stopped at this house Du Bourg enquired for some person by the description, as he thought, of Captain or Colonel, and that the answer given by the servant was, that he was gone to breakfast in Cumberland-street.

Having proceeded thus far, the next thing for the Committee to discover was whether Lord Cochrane was a person who could have any possible interest in the success of this fraud. They pursued their enquiries upon that subject, and they discovered, to their utter astonishment, that this nobleman--this officer highly distinguished in the navy, then lately appointed to an important command, and one should have supposed his whole soul ingrossed in preparation for the active and important service on which he was going--this Representative in Parliament for the City of Westminster, bound by the most sacred of all duties, not to involve himself in any situation by which his honest judgment could be warped, and his parliamentary conduct influenced--they found Lord Cochrane to have been a deep speculator in omnium; that he had been so for one week only; that on that Monday morning he had a large balance on hand, and that on that Monday morning he had sold out the whole of that balance, and sold it at a profit.