The published material is an extract from the unpublished part of the manuscript of the main work of the Croatian scientist Yuri Krizhanich "Political Thoughts," in which he advocated the unity of all Slavs around Russia in their struggle to achieve national independence, put forward a program of economic transformation of the Russian state and new principles of economic and financial. Part of the manuscript "Political Thoughts" was written by Krizhanich in Latin, which is a mixture of Church Slavonic and Russian languages ​ ​ with Croatian speeches, most of them in Latin in cursive. The manuscript was found by P. Bessonov, who removed a copy from it, but due to material difficulties published only 465 of the 778 pages of the manuscript.