The second book is the Expositio Sequentiarum, according to the use of Sarum, printed in 1506, the copy of which in the British Museum is believed to be unique.
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M. Claudin, who discovered them, and Dr. Dickson have ascribed them to the press of Laurence Hostingue of Rouen; but Gordon Duff has produced evidence to show that they should rather be assigned to that of Pierre Violette, another printer at Rouen.