The article presents an analysis of several aspects of the method of measurement of the mental national legal system. Exploring them, the authors argue for the importance of its heuristic for identifying the specifics of the Russian state and legal world, especially the key stages of its formation, the development of the most important political and legal institutions, and others.

In the present study, an attempt was made to analyze the activities of "Lebensborn" (source of life), established under the auspices of SS reichsfuhrer G. Himmler, whose task was to fundamentally improve the racial characteristics of the German nation. The ultimate goal of this policy was the development of a flawless racial superman who was considered one of the most important factors in securing Nazi Germany's world domination. The Lebensborn phenomenon is considered in a broad cognitive context in the cognitive understanding of the mechanism for legitimizing Nazi legal policy, considering the characteristics of the legal and political culture of the Third Reich ideology. Using a wide range of archival documents, including the Lebensborn Charter, as well as research publications, the authors identified and analyzed the organization's main orientations and results. The special focus is on the creation in the third Reich of Lebensborn specialized parent houses, in addition, the second is considered in the context of the legitimacy of racial legal policies.

The article highlighted the structural elements of mental measurement processes and factors of legitimation of State authority in the domestic political and legal space. The focus is on the two alternative models of post-Soviet State-legal construction, both conservative and Liberal, which largely determines the logic of national statehood at the turn of the 20th-21st centuries. In this context, the author highlights the specificity of the legitimation of power institutions, identifies the basic parameters of its study, raises questions about the possible prospects for the modernization of the power relations in the context of Russian culture-civilizational identity.

This article takes a look at various aspects of the national legal and political mindset: discreetly-structural, methodological, cultural, religious, functional, etc. The authors not only distinguish the nature and characteristics of domestic legal (wider politico-legal) mentality, identify its main functions, show the place and significance in the Russian public-legal, but to refract the main theoretical developments through the prism of the little studied in modern jurisprudence, old political and legal ideas, spiritual component which turns out to be extremely interesting and revealing in many ways to explore such a topical issue at the moment, as the legal mindset , political mentality, legal consciousness, legal culture in transition period of development of the state and law, still continuing in Russia early 21st.

The monograph contains the analysis of the content and classification of the results of master's and doctor's theses in the specialty "Civil law", defended in the leading universities of the Russian Empire, the subject of which were the institutions and norms of civil judicial system and justice, as well as Roman law. The theses are considered in blocks grouped according to the basic elements of the science of Roman law and civil procedure. The main purpose of the authors is to identify the main areas of research of domestic legal scholars of the XIX-early XX centuries., to trace the goals, objectives and nature of the work, to present a set of forms of theoretical knowledge obtained in them. The content of key ideas, hypotheses, concepts, theories obtained in the course of pre-revolutionary studies on Roman law and civil procedure is disclosed in the appendices to the monograph. The book is addressed to a wide range of researchers, teachers, doctoral students, graduate students and University students interested in the development of science of Roman law and civil procedure in Russia.