Proposes Dr [Marcus Elieser] Bloch [(1723-1799), physician and naturalist], of Berlin, with whom he has been in correspondence, as a FMLS. Recommends Bloch's work on fish [see RelatedMaterial below]. Bloch has invited him to become member of the Societé des Scrutateurs de la Nature at Berlin. Intends to send him "Linnean Transactions", requests copies of first and second volumes, so as to also send to Dr Walther of Erlang.