Solar Cosmic Rays : Fundamentals and Applications The book summarizes the results of solar cosmic ray (SCR) investigations since 1942. The present monograph unlike the reviews published earlier treats the problem in self contained form in all its associations from fundamental astrophysical aspects to geophysical aeronautical and cosmonautical applications. It includes a large amount of new data accumulated during the last several decades of space research. As a result of the information burst in space physics there are a lot of new interesting theoretical concepts models and ideas that deserve attention. The author gives an extensive bibliography which covers non partially the main achievements and failures in this field. The book will be helpful for a wide audience of space physicists and it will be relevant to graduate and postgraduate courses. The book will serve as a reference work for researchers and students in solar physics and astrophysical plasma physics as well as in cosmic rays physics astroparticle physics space science solar terrestrial relations geophysics and those researching space weather problems especially the problems of radiation hazard in space