282 PROCEEDINGS OF THE SECTIONS. 
first of these, which was held in Paris in 1851, was very compre- 
hensive in its scope, as it undertook to determine the question of 
quarantine in respect not to cholera but also to other 
infectious diseases, and especially yellow fever and the plague. 
quarantine should be maintained. The British did not assent, 
because the restriction upon the freedom of intercourse was Con 
sidered unnecessarily harsh, but it is worthy of note that within a 
few years afterwards the quarantine of some of the countries 
represented was more rigorous than ever. : 
The International Conference on the same subject in 1 866, which 
was held at Constantinople, was chiefly on the subject of cholera ; 
trade in the Red Sea, during the prevalence of cholera, among the 
grims who annually visit Mecca, an are so liable to its 
ravages. The English delegate again opposed, on the gr und 0: 
interference with commerce; but Swedish representative 
qu 
tion that the Turkish Government should be recommended to adopt 
these rigorous measures was decided in the affirmative by ® 
majority of 17 to 8. It was also decided that India, especially se 
valley of the Ganges, was the source from whi e pestilence 
always rose; that it was transmissible by human interco” 
between places was also shown, and the efficacy of ee 
measures was very clearly proved, the several countries W 
escaped the visitation of 1865 being those where a Tigorous 
