5. The main objects of the expedition were then specified to be: To gain information as to the real state of North-Western Australia, its resources, and the course and direction of its rivers and mountain ranges; to familiarize the natives with the British name and character; to search for and record all information regarding the natural productions of the country, and all details that might bear upon its capabilities for colonization or the reverse; and to collect specimens of its natural history. 6. It was directed that strict discipline should be observed, and the regulations by which our intercourse with the natives was to be governed were laid down; after which the instructions concluded with the following paragraphs: No further detail has been given you in these instructions, for, as you have been made aware of the motives which have induced his Majesty's Government to send out the expedition, it is supposed each individual will do his utmost in his situation to carry these objects out, either by obtaining all possible information or by such other means as may be in his power. Although the instructions regarding the expedition are addressed to you conjointly as conductors of it, it is necessary that the principal authority and direction should be vested in one individual, on whom the chief responsibility would rest. It is to be understood that Lieutenant Grey, the senior military officer, is considered as commanding the party and the person by whose orders and instructions all individuals composing the party will be guided and conform. ... 1837. All our preparations being completed, there embarked in the Beagle, besides myself and Mr. Lushington, Mr. Walker, a surgeon and naturalist, and Corporals Coles and Auger, Royal Sappers and Miners, who had volunteered their services; and we sailed from Plymouth on the 5th July 1837. TENERIFE. AQUEDUCT AT SANTA CRUZ.