The best way to use this book is to work right through it, exercise by exercise. Thus, write out Exercise 1 (a), then turn to Part II. And correct your version before you begin 1 (b). Between 1 (a) and 1 (b) you should read over once more the whole of Lesson I., and so with all the lessons. For thorough study constant revision is necessary. As soon as you have completed five lessons, then, revise; as soon as you have finished the next five, revise again, and so on to the end of the book. An excellent method of revision is to use Part II. As the Exercise, and Part I. As the Key. Thus, suppose you are revising Exercises 6 to 10 you will first read carefully over all that is said in Lesson VI. In Part I. Then, turning to Part II., take Exercise 6 (b) there, turn it into English and then compare with 6 (b) in Part I. Next, turning back to Part II., take Exercise 6 (a), turn it into Latin and compare your work with 6 (a) in Part I.