**Drop study. Arthur Mason Worthington.** "The Study of Drops" is a classic scientific work by Arthur Mason Worthington, which first saw the light of day in the 19th century. In the book, the author examines in detail the phenomenon of the spread of droplets in various environments and their properties. The work is deservedly considered one of the important scientific works that initiated many further studies in the field of hydrodynamics and fluid physics. Arthur Mason Worthington, a famous English physicist and scientist, was noted for his interest in the field of hydrodynamics and crystallography. His research always combined high scientific accuracy and deep analysis of phenomena. "Drop Research" remains an important source for scientists interested in modern research in the field of the physics of fluids and their movement in various conditions.