Complex sentence: He expanded and improved his teams and installations, inaugurating a big laboratory of chemistry and another of natural sciences, and purchasing the Cabinet of Mineralogy of the naturalist Casimiro Gómez Ortega, one of the most renowned in Europe at the time.
Split into simpler sentences: He expanded and improved his teams and installations, inaugurating a chemistry laboratory and another of natural sciences. He purchased the Cabinet of Mineralogy of the naturalist Casimiro Gómez Ortega, one of the most renowned in Europe at the time.