sentences:  In 1881 Fletcher decided to return to Australia, and, before leaving England, prepared a "Catalogue of Papers and Works relating to the Mammalian orders, Marsupialla and Monotremata", which was published in Sydney soon after his arrival.There were no openings for young scientists in Sydney at this period, so Fletcher joined the staff of Newington College where his father was still principal.He spent four years at the school and was a successful teacher, encouraging his pupils to find out things for themselves instead of merely trying to remember what their teacher had told them.