 Complete the following phrase:  He was born at Dickleburgh, near Diss, Norfolk. At the age of fourteen he began working as an architectural and topographical draughtsman for the antiquary John Britton. Afterwards he contributed designs to be engraved in the annuals then so popular, then progressed into watercolour painting, becoming an associate of the Royal Watercolour Society in 1822, and a full member in 1833. In 1850 he withdrew from active connection with this society, and took to painting in oil. His most fertile period was between 1833 and 1850. At the 