|  Augustinians were religious orders of the Roman
        Catholic church that followed a rule of community life
        derived originally from the sermons of Saint Augustine of Hippo, (this was not the Saint Augustine who is reputed to have brought Christianity to England ),
        and especially from a letter he wrote to a community of
        women in 423 A.D..  After the Lateran Synod of 1059 A.D. exhorted
        the clergy to adopt a common rule to govern their
        community life, the clergy in many cities of Europe
        formed local communities with rules less rigid than those
        of the monastic orders. During the 12th century, the
        practice of forming these communities spread throughout
        the Christian world and especially throughout western
        Europe. Community rules were unified by the Pope, who
        also united the separate communities in the order of
        Augustinian Canons, or Austin Canons. The Augustinian
        Canons were also known as the "Black Canons"
        because of their dress. The name Augustinians was also
        given to communities of women following the Augustinian
        rule, which have existed as independent congregations
        since the 11th century. There were some 15 Houses of Augustinian Canonesses in the Medieval period in England out of a total of 200 Augustinian Priories and Abbeys . Taken from "Augustinians," Microsoft(R) Encarta(R) 97 Encyclopedia. (c) 1993-1996 Microsoft Corporation. ("Encarta" is no longer published.) Who or What are Canons ?Canon (religion), in Christian usage, a rule or
        standard. By the middle of the 3rd century the word had
        come to refer to those doctrines recognized as orthodox
        by the Christian church. It was later used to designate
        collectively the list of books accepted as Scripture (see
        Bible).  In some Christian
        churches, Canon
         is also an ecclesiastical
        title given to the clergy attached to a cathedral church
        or to certain types of priests living
        under a semimonastic rule, such as the Augustinians.
        "Canon (religion)," Microsoft(R)
        Encarta(R) 97 Encyclopedia. (c) 1993-1996 Microsoft
        Corporation. 
         If you do have an old copy of ENCARTA you can find the full texts there.  In practice, the basic "Rules of St.Augustine" were modified for each Augustinian Priory. These modified rules were known as "Observances". Only one complete set of Observances has been handed down to modern times. Those were the Observances of Barnwell Priory in Cambridgeshire, now in the British Museum.  A very full account and history of the Augustinian Order of Canons and Canonesses can be found here in the Catholic Encyclopaedia |