"Elements of Qualitative Chemical Analysis, Volume 1, Parts 1 and 2. With Special Attention to the Application of the Laws of Equilibrium and Modern Theories of Solutions" is a weighty study of analytical chemistry written by the eminent chemist Julius Stieglitz. The book examines the basic principles of qualitative analysis of substances, including the application of equilibrium laws and modern theories of solutions. The author describes in detail the methods and techniques of quantitative determination of chemical compounds, analyzing their properties in relation to various elements and compounds. In particular, much attention is paid to the theory of solutions, which is key in modern analytical chemistry. The book "Elements of Qualitative Chemical Analysis, Volume 1, Parts 1 and 2" will be an indispensable reference for chemical students, scientists and anyone interested in the in-depth study of chemical analysis methods and equilibrium processes in chemistry.