[6] Popular abbreviation of St. Petersburg.
[7] The building in which the offices of the Carnegie Company were located.
[8] A "disguise" address, to mask the identity of the correspondent.
[9] Joseph Peukert, at one time a leading Anarchist of Austria, was charged with betraying the German Anarchist Neve into the hands of the police. Neve was sentenced to ten years' prison. Peukert always insisted that the accusation against him originated with some of his political enemies among the Socialists. It is certain that the arrest of Neve was not due to calculated treachery on the part of Peukert, but rather to indiscretion.
[10] Clever, brave lad.
[11] Young lady.
[12] Mister.
[13] Lady.
[14] Prisoner taking care of a range or tier of cells.
[15] Cell-house.