Lean of Brunswick Square, who had not long left the Mansion House, returned about four o'Clock and informed me, that, the Meeting in the Fields had broken up, and that, there were 15,000 people coming down Holborn and passing to Fleet Market. I determined to go and meet them; Sir James Shaw and Mr. Mc Lean tendered their Services, when taking some Police Officers some Special Constables and a Detachment of Dragoons with us we moved on in a quick pace by the North side of St. Paul's Church Yard where we met about 2,000 persons, but seeing they were without arms of any kind and perfectly peaceable, we allowed them to pass on. We proceeded Westward and nearly to the middle of Fleet Street when meeting another party of Dragoons, who informed us everything was quiet in that Quarter we returned to the Mansion House, I having first directed a party of the Horse accompanied with Police Officers to make the Circuit of the Prisons and to report to me when they had so done. The City was quiet from this time. About 12 o'Clock at Night some papers taken by the Constable out of the Pocket of the Man who shot Mr. Platt were shown to me, by which I learned that Hooper was connected with Preston the Secretary of the Spa Fields Meeting. These papers state that subscriptions towards defraying the expences of erecting Hustings, Printing &c., will be received by J. Hooper No. 9 Graystock Place Fetter Lane signed Preston Secretary. About one in morning accompanied by Mr. Sheriff Kirby, Mr. Under-Sheriff Kearsey and others with some Constables, I went to No. 9 Graystock Place and made the Householder come down, who proved to be Preston the Secretary. We searched the House and found in it very few papers--one an Hymn, and another a letter of exhortation on the subject of 'England expects every Man to do his duty.' There was likewise a small quantity of Tricolored Ribbon. Preston had two daughters and there were only two Beds on the floor in the same room, the whole house in a most wretched condition--with scarsely a chair; in the room used by Hooper for the reception of subscriptions there was no other furniture but a table. Preston said Hooper did not lodge there nor did he know where he lived. It is supposed Watson Junr. was the Person who fired the Pistol at Mr. Platt, as Hooper says he did not see Watson for some time after they left the Fields, and it appears that he went into the Shop alone. The Officer was induced to let him escape through the entreaties of Mr. Beckwith's family who were apprehensive should he be detained that the house would be pulled down. I have no doubt had the Mob not been prevented it was their intention to have collected a great number of fire arms and then to have returned to Spa Fields and from thence to Carlton House. Hooper admits that they intended to go to Carlton House, but not with fire arms. Hooper said that Watson Junr. gave him the Pistols on Sunday night at Preston's House and in his presence said