It was these incessant alterations of ratio which led Portugal to abandon bimetallism. The preamble of the law of 1854, which instituted the gold single standard, expresses this, attesting that the circulation felt the lack of harmony and the disorder produced by alterations in the ratios, that the legal ratio being higher than the commercial ratio hampered the transmission of money and burdened all transactions. The law was adopted unanimously by the Portuguese Chambers. The International Conferences. The chief feature of the modern monetary agitation--the international conferences and the attempt at international system--is due to the rapid development of bimetallic theory in France, and to the initiative of the United States, as well as to the universal or world-embracing needs of the situation, and the extension of the domain of international law or morality. It is a mistake to suppose that this new era dates from 1871, from the change in the German monetary system and the commencement of the wide divergence between the two metals. The formation of the Latin Union was the initial step in the process, although, in a smaller sphere, German monetary history for centuries had been acquainted with Mint conventions between very divergent systems, and had shortly before furnished another illustration in the Conference of Vienna in 1857. The first widely-embracing international conference proper, however, was the outcome of an expression of opinion in the conclave of the Latin Union. It was called at the invitation of France, and met at Paris on the 17th June 1867. The States represented were Austria, Baden, Bavaria, Belgium, Denmark, Spain, the United States, France, Great Britain, Greece, Italy, the Netherlands, Portugal, Prussia, Russia, Sweden and Norway, Switzerland, Turkey, and Würtemberg. The eight sessions of the conference occupied till the 6th July 1867. All the states except Holland declared in favour of a gold standard. It closed without arriving at any actual or practical conclusions, but the president, De Parieu, in his concluding oration, considered himself justified in asserting that the sense of the conference was in favour of a gold monometallic standard, approximating, as near as the occasions of future Mint change in the various states would permit, to a unit based on the 5-franc piece (620 tale to a kilogramme of gold). [Sidenote: THE CONFERENCE OF 1868]