The Beagle Diary was later used to write Darwin's famous book 'Voyage of the Beagle' (1839). The narrative of the surveying voyages of His Majesty's Ships Adventure and Beagle between the years 1826 and 1836. Darwin describes each day of the voyage, some in intimate detail, during the Beagle's circumnavigation of the globe.
14th August 1832
Montevideo Signor Frutez entered the Town in full parade & was saluted by the forts. He was accompanied by 1,800 wild Gaucho cavalry; many of them were Indians. I believe it was a magnificent spectacle; the beauty of the horses, & the wildness of their dresses & arms were very curious.