Reported Prevalence for the Year 1921-Medians for Previous Years-Continued. SCARLET FEVER-Continued.

Reported Prevalence for the Year 1921-Medians for Previous Years-Continued.

Reported Prevalence for the Year 1921—Medians for Previous Years-Continued.

Reported Prevalence for the Year 1921-Medians for Previous Years-Continued.

Reported Prevalence for the Year 1921-Medians for Previous Years-Continued.