The constitutional squad (ie opposition) advancing to attack

A procession of the Opposition headed by Moira (left) in regimentals, beating a drum, marches to the attack. Next, Grenville and Grey march together. Grenville, short and with massive posterior, stoops forward; he is Don Quixote, wearing the barber's bowl (Mambrino's helmet). He holds a tilting-lance and a shield on which is the profile head of Fox and the inscription 'Opera Illius Mea Sunt'. Grey, on Grenville's right, walks erect, holding up a banner inscribed 'Black Spirits and White Blue Spirits and Grey, come mingle mingle you that mingle may' [words quoted by Burke from Macbeth in 1791]. Behind them walks Sidmouth, holding a long syringe across his shoulder, and under his left. arm a basket full of bottles, with a paper: 'Pills Potions Lotions for blundering Ministers'. The tall Erskine follows, in Chancellor's wig and gown, with arms raised and fists clenched. He sings (misquoting O'Hara's 'Midas', ii. 3). Beside him is the much shorter Ellenborough, whose head, wig, and a gouty leg emerge from behind Windham, who, with Sheridan, is straining at the ropes by which a large cannon is dragged along. Sheridan is dressed as Harlequin, with wooden sword and bonnet rouge tucked under the belt which encircles his paunch. Behind them is Temple carrying on his head a large basket labelled 'Amunition'. It is filled with documents: 'Bark Bill', 'Mutiny Bill', 'Cold-bath Fiels' [sic], 'Oude Question', 'Copenhagen', and (projecting from a hole in the basket) 'State Papers'. The cannon, mounted on a heavy gun-carriage, is inscribed 'Revolutionary Argument', with a bonnet rouge above the words. The head of the Devil Peeps from the muzzle; he says with a grin: "Ah! Ca Ira, ca Ira! ca Ira!" Lord Henry Petty bestrides the cannon near its mouth, jovially playing the fiddle and singing. Behind him is Derby, also astride and holding up a slow-match which resembles a serpent spitting flame and smoke. Whitbread walks behind holding up in both hands a foaming tankard of 'Whitbread Entire Froth'. Next, Burdett walks, supporting himself on crutches, a bandage round the leg wounded by Paull. He is pushed forward by Horne Tooke, who says: "Now my Boy remember my Instructions bother 'em well, touch 'em to the Quick". He and a man whose head is partly hidden push the cannon. Behind Tooke a man hurries forward holding up a document inscribed 'Adress to his Majesty . . . Copenhagen.' He shouts "Push on, Push on, I'll give them a sharp attack." He is Richard ('Conversation') Sharp. On the extreme right. is an unrecognizable head.