An edition of Some calculations of the number of accidents or deaths which happen in consequence of parturition (1781)

Some calculations of the number of accidents or deaths which happen in consequence of parturition

and of the proportions of male to female children, as well as of twins, monstrous productions, and children that are dead-born ... With an attempt to ascertain the chance of life at different periods ... and likewise the proportion of natives to the rest of the inhabitants of London. In a letter to Samuel Foart Simmons ... Read at the Royal Society, May 10, 1781, and published in the Philosophical transactions, vol. LXXI

By R. Bland