Price, just, see Just price. 
  Priscian, 14. 
  Prodigality, an offence against liberality, 79.
    a sin towards the individual and the community, 78.
    distinction from liberality, 76. 
  Production, an honourable vocation, 226.
    cost of, as a factor in determining value, 111 et seq.
    extended, the aim of mediaeval teaching, 223.
    regulation of, 32. 
  Professions, see Labour. 
  Profit, of the campsor to be determined by just price, 158. 
  ‘Profiteer,’ the, doctrine of just price a weapon against, 125. 
  Profiteering, prohibition of, 151. 
  Property, duties attaching to, 69.
    duties in respect of exchange of, 102.
    immovable, rule for determining value, 120.
    in human beings, 88.
    private, duties attaching to, 40.
      right of, 39.
      teaching of mediaeval Church, 41 et seq.
      the foundation of mediaeval economics, 40.
      the keystone of economic system of later theologians, 66.
  Proverbs, 165. 
  Prutz, 146.
  Psalms, 137, 165, 171.

  Rabanas Mauras, 14. 
  Rambaud, 7, 8, 13, 80, 87, 100, 114, 146, 151, 182, 183, 188, 197,
203, 213, 215. 
  Reformation, the, 211.
    attacks on monastic life during, 138. 
  Renaissance, the, 218. 
  Rent, pronouncements on, by the Popes, 204.
    refusal to pay, in Breslau, 204.
    scholastic teaching on, 202 et seq.
  Revue Archeologique, La, 61. 
  Riches, the early Church on their abuse, 53. 
  Rickaby, 75. 
  Risk, remuneration for, 152, 157, 191. 
  Rist, see Gide. 
  Roman Empire, the, fall of, regarded as beginning of Middle Ages, 3.
    jurists, their views on slavery accepted by Thomas Aquinas, 94.
  Romans, Epistle to the, 48. 
  Rome, condemnation of usury by the philosophers of, 162.
    laws regarding interest in, 160. 
    Numa, King of, 15.
    policy of, enforced by clergy, 11.
    the attitude to manual labour in, 137. 
  Roscher, W.G.F., 5, 13, 19, 34, 46, 48, 87, 88, 107, 108, 112, 114,
121, 125, 142, 163, 166, 172, 186, 204, 215, 217. 
  Ryan, Dr. J.A., 49, 74, 117, 123, 135.

  Sabatier, 223. 
  St. Ambrose, 49, 52, 60, 82, 171.
    quoted by Aquinas, 71. 
  St. Anselm, 14. 
  St. Anthony, advice to his followers, 223. 
  St. Augustine, 49, 57, 60, 63, 92, 93, 97, 98, 105, 146, 154, 172, 224.
    theory of slavery analysed by Janet, 93.
    views on slavery accepted by Aquinas, 94 et seq.
  St. Barnabas, 45. 
  St. Basil, 49, 153, 171, 224.
    quoted by Aquinas, 71. 
  St. Benedict, 152. 
    Rule of, 224. 
  St. Clement of Alexandria, 45, 49, 54, 168, 170. 
  St. Clement of Rome, 49, 54. 
  St. Cyprian, 45, 50, 168, 170. 
  St. Gregory Nazianzen, 54. 
  St. Gregory of Nyssa, 171. 
  St. Gregory the Great, 49.