Treatise on Law is one of few works on civil law published through the European Middle Ages and survived on its whole to the present day. Treatise on Law is an excerpt of questions 90 to 108 of the Summa Theologica. Originally published in the 13th century by Thomas Aquinas (c.1225-1274), the present edition contains the translation made anonymously by Father Laurence Shapcote (1864-1947) and published in 1920 by Burns Oates & Washbourne Ltd. Treatise on Law is composed of the following questions: - Question 90. Of the essence of law
- Question 91. Of the various kinds of law
- Question 92. Of the effects of law
- Question 93. Of the eternal law
- Question 94. Of the natural law
- Question 95. Of human law
- Question 96. Of the power of human law
- Question 97. Of change in laws
- Question 98. Of the old law
- Question 99. Of the precepts of the old law
- Question 100. Of the moral precepts of the old law
- Question 101. Of the ceremonial precepts in themselves
- Question 102. Of the causes of the ceremonial precepts
- Question 103. Of the duration of the ceremonial precepts
- Question 104. Of the judicial precepts
- Question 105. Of the reason for the judicial precepts
- Question 106. Of the law of the gospel, called the new law, considered in itself
- Question 107. Of the new law as compared with the old
- Question 108. Of those things that are contained in the new law
