also Lankford, John History of Astronomy Routledge 1996 ISBN 978-0-8153-0322-0P.43, books.google.co.uk ^ OED , citing J. Harris , Lexicon Technicum (1704): "Zodiack of the Comets, Cassini hath observed a certain Tract [...] within whose Bounds [...] he hath found most Comets [...] to keep." ^ Powell 2004 ^ Hugh Thurston, Early