Complex sentence: He migrated with his family to Melbourne in 1861 but returned to England to study medicine and qualified M.R.C.S. from University College, London and L.R.C.P. from University of Edinburgh in 1866.
Split into simpler sentences: He migrated with his family to Melbourne in 1861 but returned to England to study medicine. He qualified M.R.C.S. from University College, London and L.R.C.P. from University of Edinburgh in 1866.