Complex sentence: The Woman's Education Association agreed to raise money for equipment for The Laboratory until a new building which had been erected by the Institute in 1883 gave space for all the students, women as well as men, at which point the Laboratory was closed.
Split into simpler sentences: The Woman's Education Association agreed to raise money to buy equipment for The Laboratory. A new building, which had been erected by the Institute in 1883, gave space for all the students, women as well as men, at which point the Laboratory was closed.