Thomas Clarkson's Box. In an effort to gather hard facts about the Slave Trade, Thomas Clarkson visited many ports and went aboard the trading vessels. One of the first African trading ships Clarkson visited was called the âLively'.It was not a slave ship but its cargo had a powerful impact upon Clarkson.homas Clarkson. Thomas Clarkson is a local hero. A red haired man who stood over 6 feet tall, he spent his long adult life working to abolish the Transatlantic Slave Trade and slavery itself.
roof image by Eldin Muratovic from <a href='http://www.fotolia.com'>Fotolia.com</a>. Corrugated roofing is made of overlapping sheets of metal, iron, steel, aluminum or fiber glass, which are joined together at the sides.
The individual panels are attached to wood or metal trusses with steel nails or screws that can rust and cause leaks. Strong winds can separate the overlapping edges of the panels and allow the roof to leak. Fixing leaks in a corrugated metal roof starts with locating the source of the leaks. Use a piece of similar-style corrugated roofing to patch holes. 2  Cut the piece large enough to cover the hole and 6 inches of the surrounding roofing each way, using sheet metal cutters.