The rear of our armies must be finally guaranteed and completely cleared of all kinds of White-Guardists, and all despicable conspirators against the authority of the working-class and of the poorest peasantry. Not the slightest hesitation or the slightest indecisiveness in applying mass terror. Acknowledge the receipt of this telegram. Transmit to district Soviets. [Signed] PETROVSKY.[17] [17] The text is taken from the _Weekly of the All-Russian Extraordinary Commission_ (No. 1), Moscow, September 21, 1918. The translation used is that published by the U. S. Department of State. It has been verified. On September 3, 1918, the _Izvestia_ published this news item: In connection with the murder of Uritzky five hundred persons have been shot by order of the Petrograd Extraordinary Commission to Combat Counter-Revolution. The names of the persons shot, and those of candidates for future shooting, in case of a new attempt on the lives of the Soviet leaders, will be published later.[18] [18] Desiring to confine the evidence here strictly to Bolshevist sources, I have passed over much testimony by well-known Socialists-Revolutionists, Social Democrats, and others. Because it has not been possible to have the item referring to the retaliatory massacre in Petrograd satisfactorily verified, I introduce here, by way of corroboration, a statement by the Socialists-Revolutionists leader, Eugene Trupp, published in the organ of the Socialists-Revolutionists, _Zemlia i Volia_, October 3, 1918: “After the murder of Uritzky in Petrograd 1,500 people were arrested; 512, including 10 Socialists-Revolutionists, were shot. At the same time 800 people were arrested in Moscow. It is unknown, however, how many of these were shot. In Nizhni-Novgorod, 41 were shot; in Jaroslavl, 13; in Astrakhan, 12 Socialists-Revolutionists; in Sarapool, a member of the Central Committee of the party of Socialists-Revolutionists, I. I. Teterin; in Penza, about 40 officers.” See also the corroboration of this incident quoted from the _Weekly Journal of the Extraordinary Commission_, on p. 171. Two days later, September 5, 1918, a single column of _Izvestia_ contained the following paragraphs, headed “Latest News”: _Arrest of Right Socialists-Revolutionaries_ At the present moment the ward extraordinary commissioners are making mass arrests of Right Socialists-Revolutionaries, since it has become clear that this party is responsible for the recent acts of terrorism (attempt on life of Comrade Lenin and the murder of Uritzky), which were carried out according to a definitely elaborated program. _Arrest of a Priest_ For an anti-Soviet sermon preached from the church pulpit, the Priest Molot has been arrested and turned over to the counter-revolutionary section of the All-Russian Extraordinary Commission. _Struggle Against Counter-Revolutionaries_