...The national collection of mortality statistics on an annual basis was begun in 1900. The national death-registration area for 1900 consisted of 10 States, the District of Columbia, and a number of cities in non-registration States. The area gradually expanded in succeeding years until in 1933 it comprised...

...deaths.—The national collection of mortality statistics on an annual basis was begun in 1900. The national death-registration area for 1900 consisted of 10 States, the District of Columbia, and a number of cities in non-registration States. The »rea gradually expanded in succeeding years until in 1933 it comprised...

...deaths.—The national collection of mortality statistics on an annual basis was begun in 1900. The national death-registration area for 1900 consisted of 10 States, the District of Columbia, and a number of cities in non-registration States. The area gradually expanded in succeeding years until in 1933 it comprised...

...statistics on an annual basis was begun in 1900. For that year, the national death-registration area consisted of 10 States, the District of Columbia, and a number of cities in nonregistration States. The national collection of birth statistics wss begun in 1915 with 10 States...

...of mortality statistics by the Bureau of the Census began with the calendar year 1900. The national death-registration area for 1900 consisted of 10 States, the District of Columbia, and a number of cities in nonregistration States. This area grew gradually by the addition of more States until, with the...

...laws requiring the registration of deaths, and in many States the existing laws were poorly enforced. The death-registration area for 1900 consisted of...number of cities located in nonregistration States, included 40.5 percent of the population of the continental United States, was predominantly urban,...

...laws requiring the registration of deaths, and in many States the existing laws were poorly enforced. The death-registration area for 1900 consisted of...number of cities located in nonregistration States, included 40.5 percent of the population of the continental United States, was predominantly urban,...

...satisfactory data in necessary detail. . . ." The death-registration area established in this manner in 1902 consisted of 10 States, the District of Columbia, and a number of large cities in nonregistration States. In 1933, for the first time, both the birth- and death-registration...

...the vital statistics offices of those States and cities having adequate death-registration systems. The deathregistration area for 1900 consisted of 10...number of cities located in nonregistration States. This original registration area included 40.5 percent of the population of continental United States...

...the vital statistics offices of those States and cities having adequate death-registration systems. The deathregistration area for 1900 consisted of 10...number of cities located in nonregistration States. This original registration area included 40.5 percent of the population of continental United States...