Arrived back in London. Thanks for "Lachesis Lapponica". Sir Joseph Banks taking him to the [Royal Society] anniversary dinner. Antiquarian Society in uproar; Sir [Henry] Englefield [7th baronet (1752-1822)] "pants" for the Chair but his Popish connection has raised a powerful opponent in Lord Aberdeen [George Hamilton-Gordon, 4th Earl of Aberdeen (1784-1860)], who has carried ninety-two votes to three.