An Arithmetical and Medical Analysis of the Diseases and Mortality of the Human Species. by William Black, M.D. ... the Second Edition, Corrected and

An Arithmetical and Medical Analysis of the Diseases and Mortality of the Human Species. by William Black, M.D. ... the Second Edition, Corrected and

An Arithmetical and Medical Analysis of the Diseases and Mortality of the Human Species. by William Black, M.D. ... the Second Edition, Corrected and