Complex sentence: The chemist W.R.Bunsen is said to have worked at the ironworks, anlysing the chemical behavoir of coke fired blast furnaces and oil was discovered in the mid part of the 19th century and developed into a paraffin industry by a scotsman called James Young.
Split into simpler sentences: The chemist W.R.Bunsen is said to have worked at the ironworks, analysing the chemical behavoir of coke fired blast furnaces. Oil was discovered in the locality mid 19th century and this was developed into a paraffin industry by a Scotsman James Young.