This thesis is concerned with certain aspects of the reign of Muzaffar al-Din Shah of Persia from 1896 to 1907; during the last year of which Persia ceased to be an absolute monarchy and adopted a constitution. The thesis first of all discusses the value of various British archives for the study of this period. It goes on to consider the character of Muzaffar al-Din and the nature of government during his reign. Two particular organs of government are-studied in detail: the army and the Customs administration, which was then undergoing reform at the hands of Belgian experts. The diffusion of cholera throughout Persia in 1904 is described, and the effects of that epidemic are discussed. The thesis then turns to a study of the political and economic circumstances which prevailed in the two important provinces of Fars and Isfahan. The thesis shows that there was much discontent in Persia, and it notes that few of the sources of that discontent were new., It is seen that members of the religious classes played an important part in events throughout the period. It is shown that the government of Muzaffar al- Din Shah was weak, that it failed to exercise effective central control, and that it was incapable of meeting the demands made upon it. It is argued that Anglo-Russian rivalry had a considerable impact on domestic events, and that that rivalry increased the problems facing the country, while at the same time it revealed to many Persians the extent of the government's weakness. It is concluded that although many demands were being made of the Shah and his government, they were not essentially incompatible with the continuation of absolute rule