GC.Longmans Green and co,1942.First edition-first impression.Blue hardback(foxing marks,stain marks on the edges of the cover and spine,some dents and faded on the cover and spine) in good condition, no Dj.Illustrated with b/w drawings,diagrams.Clean pages but aged and tainted on the outer edges,owner's name written inside the first blank page of the book,small creases,nicks and foxing marks on the edges of the pages.The book is in GC for its age with some shelf wear.271pp including Answers to examples,index.First edition.