│ │ │ │Denmark, Sweden│ │ │ │ │and Turkey. │ │ │ │ │1874–75, │ │ │ │ │Extensive │ │ │ │ │spread in │ │ │ │ │America, │ │ │ │ │Germany and │ │ │ │ │France, with │ │ │ │ │recurrence one │ │ │ │ │year later in │ │ │ │ │eleven areas of│ │ │ │ │the United │ │ │ │ │States. │ │ │ │ │1879, America. │ │ │ │ │1885–88, │ │ │ │ │Re-appeared │ │ │ │ │each year in │ │ │ │ │Petrograd. │ │ │ │ │1889, (Spring) │ │ │ │ │Greenland and │ │ │ │ │Hudson Bay │ │ │ │ │territory. │ │ │ │ │(May) Bokhara │ │ │ │ │in Turkestan │ │ │ │ │from where the │ │ │ │ │great pandemic │ │ │ │ │of 1889–90 is │ │ │ │ │usually said to│ │ │ │ │have taken its │ │ │ │ │origin. │ ─────┴──────────────┴─────────────┴──────────────┴───────────────┴────────────── Table I shows that prior to 1510 the information was so limited as to be not entirely conclusive. We must rely upon the fragmentary descriptions of writers located usually in or near the intellectual centers who described the disease as they saw it in their city or country. We have no way of ascertaining what other countries were invaded, and we possess no method by which we may enumerate the “silent areas,” countries which in the absence of a chronicler have not been able to transmit their story.