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 Robert Bland.

  • Bland, R. (Robert), 1730-1816.
Date:
1781
Catalogue details

Licence: Public Domain Mark

Credit: 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 Robert Bland. Source: Wellcome Collection.

    5/24 (page 5)
    4. The number of children they had been able to preferve. 5. The place or country where they and their hufbands were horn. And after the delivery of the patient I have conftantly noted, 1. The accidents that attended, or were the confequences of parturition. 2. The fexes of the children delivered. .. v *** j. The number of twins or triplets. 4. The number of the children that were deficient or mon- ftrous. * - ■ . * «* • tS 5. The number of the children that were dead-born: and, as the women were enjoined to return their letters as foon as they were able to go abroad, I farther intended to have added i the proportion of the children who died under four or five weeks; but many of the women neglecting this duty, pre¬ vented my information under this head from being fo compleat as I could have wifhed. Of thofe, however, who came, or of whom certain account could be obtained, the number is fet down. From the above mentioned regifter the following tables and accounts have been compofed; and as the greateft care and exa&nefs were ufed in recording the feveral circuinftances, the fame punctuality has been obferved in collecting and digefting them. And that they might be kept as free from error as' poffible, tables for each year were firft compofed and com¬ pared together ; but finding no material variation, I did not think it neceflary to produce them in that form. My firft in¬ tention was to have given the tables limply, and without any explanatory obfervations ; but finding I could not introduce all the circumftances I had noted in my regifter, as was particu¬ larly the cafe with regard to the firft table, and imagining that