Shakespeare, William. The Merchant of Venice. The Plain-Text Shakespeare. London and Glasgow: Blackie and Son, 190?
Contains a two page list of titles in the "Highways and Byways of English Literature Blackie's English Texts" series edited by W. H. D. Rouse.
References:
Other examples of this series design are listed in the catalogue of Glasgow University Library as part of their Talwin Morris collection.