'Took Colquhoun's "treatise of the police of the metropolis" to the library. I have not read it but, Mr Evans has; he says that he gives a most dreadful idea of the state of London; he says there are no less than 200, 000 persons, who when they get up in the morning do not know where they shall lay their head at night. That very miserable story, which I have cut out of an old "Iris" & is amongst the rest of the newspaper scraps, & entitled "On the Police of Paris" Mr Col[...] says was related to him by a Foreign Ambassador, who was at Paris at the time.'