Abstract
Sir, Being lately informed by Dr. Poemmering, whom on account of his singular industry and talents I have recommended to your favour, that you, as well as l'Abbé Fontana and Dr. Ingenhousz, were suprized to hear from M. Febroni, the keeper of the Duke of Tuscany's Museum, that I had discovered the true organical reason for which the Orang Outang, and several other apes and monkies, are unable to speak; I take the liberty of addressing to you this anatomical essay upon the organ of speech of the Orang Outang and other monkies, in hopes you will judge it worthy to be read to the Royal Society; in whose most valuable Transactions I should be very proud to see these observations; the rather, as it is the first essay I have offered to that respectable body.

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