John Armstrong

A Key To The Western Calculator; Containing The Solution Of All The Examples And Questions For Exercise With Reference To The Pages Where They Stand To Which Is Added Some Useful Rules John Armstrong

A Key To The Western Calculator; Containing The Solution Of All The Examples And Questions For Exercise With Reference To The Pages Where They Stand To Which Is Added Some Useful Rules has been considered by academicians and scholars of great significance and value to literature. This forms a part of the knowledge base for future generations. So that the book is never forgotten we have represented this book in a print format as the same form as it was originally first published. Hence any marks or annotations seen are left intentionally to preserve its true nature.