1. Lino Camprubí, Max Planck Institute for the History of Science, Boltzmannstraße 22, 14195, Berlin, Germany; lcamprubi@mpiwg-berlin.mpg.de.
2. Sam Robinson, Centre for the History of Science, Technology and Medicine, University of Manchester, Oxford Road, Manchester, United Kingdom, M13 9PL; samrobinsonphd@gmail.com.