Complex sentence: The composition of meteorites and their differences to terrestrial rocks was being investigated as early as 1850 and in 1901, Oliver C. Farrington hypothesised that, although there were differences, the relative abundances should still be the same.
Split into simpler sentences: The composition of meteorites and their differences to terrestrial rocks was being investigated as early as 1850. In 1901, Oliver C. Farrington hypothesised that, although there were differences, the relative abundances should still be the same.