Complex sentence: In 1904-1905, Solovovo translated Frank Podmore's "Modern Spiritualism" (two volumes) into Russian with a new supplement that included an exposure of the fraudulent medium Jan Guzyk.
Split into simpler sentences: In 1904-1905, Solovovo translated Frank Podmore's "Modern Spiritualism" (two volumes) into Russian with a supplement. In this supplement was an exposure of the fraudulent medium Jan Guzyk.