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.
27th February 1835
Mocha The Captain at last effected a landing through a heavy surf; during his observations the tide fell, & it was found impossible to launch the boat again.