Complex sentence: The gift included furnishings for the branch, which was to include a reading room and $10,000 in 7% railroad bonds with the condition that the reading material in German be maintained sufficiently, and German-speaking staff be in attendance.
Split into simpler sentences: The gift included $10,000 in 7% railroad bonds and furnishings for the branch, which was to include a reading room. An accompanying condition was that the reading material in German be maintained sufficiently, and German-speaking staff be in attendance.