Complex sentence: In his heartfelt proposal to the Carnegie Institute for Science entitled "Plea for an Institute of Human Embryology," Mall brought up the noticeably slower advancements in anatomy and embryology when compared to astronomy, despite the larger amount of faculty and resources present within the field.
Split into simpler sentences: In his heartfelt proposal to the Carnegie Institute for Science entitled "Plea for an Institute of Human Embryology," Mall juxtaposed the exploits in the field of astronomy with his own specialty, embryology. He noted the comparatively slower advancements in anatomy and embryology despite the larger amount of faculty and resources present within the field.