Sentence:  He was also much of a politician; too much, perhaps, for his station. There fell lately into my hands, in London, a collection he had made of all the principal pamphlets, relating to public affairs, from 1641 to 1717; many of the volumes are wanting as appears by the numbering, but there still remain eight volumes in folio, and twenty-four in quarto and in <WSD>octavo</WSD>. 
Meaning of the word marked with <WSD> tags:  A book of octavo pages.