Paul Dobraszczyk is a lecturer in Art History at the University of Manchester and his research covers a wide variety of subjects, including ornament and iron, visual representations of London's Victorian sewers, and the relationship between real and imagined urban ruins. He has published widely on these subjects, including Iron, Ornament and Architecture in Victorian Britain (Ashgate, 2014), London's Sewers (Shire, 2014) and Into the Belly of the Beast: Exploring London's Victorian Sewers (Spire, 2009). He is currently working on a monograph, provisionally titled Dead Cities and the Imagination of Disaster. Peter Sealy is a PhD student at Harvard University, where he is a Frank Knox Fellow. His dissertation charts the productive utility of photography's claim to factuality as it explored increasingly subjective qualities in late-nineteenth-century architectural publications. An expose of this argument appeared in Blackwell's Companion to 19th Century Architecture. He co-authored (with Martin Bressani) an article on the photographs published with Charles Garnier's Le Nouvel Opera, published in Art and the Early Photographic Album (CASVA, 2011). He holds architecture degrees from McGill University and the Harvard GSD; previously, he worked at the Canadian Centre for Architecture in Montreal on exhibitions including Actions (2008) and Journeys (2010).