Media type: E-Article Title: VIII. On the multiplication of partial differential operators Contributor: Sylvester imprint: Informa UK Limited, 1867 Published in: The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science Language: English DOI: 10.1080/14786446708639743 ISSN: 1941-5982; 1941-5990 Origination: Footnote: