From the Adam Mathew license:
"the Licensee and the Authorised Users may use the Licensed Materials to perform and engage in text mining /data mining activities in relation to the Licensed Materials for legitimate academic research and other non-commercial educational purposes, without obtaining the Licensor’s prior written consent"

Popular Culture in Britain and America, 1950-1975
Victorian Popular Culture
Medieval Travel Writing
China Trade Politics and Culture, 1793-1980
World Fairs: A Global History of Exhibitions
Defining Gender, 1450-1910: Five Centuries of Advice Literature
Empire Online
London Lowlife: Street Culture, Social Reform, and the Victorian Underworld
Mass Observation Online: British Social History, 1937-1972