368 Tb;e Period of Constitution Making conscious of itself, developed its powers, and became a source of initiative and authority. 5. Form and Composition of Parliament from 1265 to the Middle of the Fourteenth Century. — The period from Simon de Montfort's Parliament of 1265 to the end of the century was a critical and experimental time in the life of the young institution.- It might be more truly said that there was no new institution until £2£^ or there- abouts; there was no thought of it as such in the minds of the men of that generation. They knew only of s, the questio^^ j^^^ in which the """""" **" To show how no one was thinking of a new assembly of any definite form and at the same time to see the active use of the new practices, one needs only to glance at this period. In Ma^jrfjL2§5» justjafter^thej^ at and not more than tjrojnontl^^ ended, the king summoned, in^addi- tion^tojhejbgronage, from eachj^^ two of your more discreet canons for the said day and place, who are to have full power to deal with us in your stead along with the aforesaid prelates and magnates in regard to the business stated, and to d&JILZ2urjl^^ "" *"— In the ass^Wjjrf^Js^, the first of Edward I.'s reign, I were present the three elements necessary to a Parlia- ment in the later sense: thegregi.cQuncil, of Jbhejshires, repi^sen/taii^s^fJi^ The purpose of this assembly was mainly to giance to thenewjsoy ereign , not yet returned from the Holy LandrBut^aTfew matters incident to the new reign were dealt with tentatively. Again in the first assembly of 12^5 the sam^lhree elements were gathered and it is notable for instituting the " ancient0 custom on wool, * Stubbs, Select Charters, pp. 406, 407.