A key for the English-to-Latin exercises is available on Amazon. Search on ISBN 978-1547125098 "The Beginner's Latin Book" is a superb Edwardian primer in which William Collar, a leading American educator of his time, demonstrates his genius for teaching this difficult language. He covers every major construction, including idioms with the subjunctive, without burdening the student with the excessive technical detail to be found in more formal courses...