By the Colonial Naval Defence Act of 1865 it became lawful for any colony, subject to certain conditions, to provide and maintain its own vessels of war, and these were authorised to wear the blue ensign with the seal or badge of the colony in the fly and a blue pendant. In 1913, as an outcome of the Imperial Conference of 1911, the ships of the Naval Forces of the Dominion of Canada and the Commonwealth of Australia were further authorised to wear at the stern the White Ensign as the symbol of the authority of the Crown, a White Pendant at the masthead, and at the jack-staff the distinctive flag of the Dominion, viz: the Blue Ensign with the badge or emblem of the Dominion in the fly. The ships of the Royal Indian Marine occupy a somewhat ambiguous position. Some of them--the floating defences--may be regarded as a Colonial Navy, others might more properly be included in class (3), Public Vessels. The old Indian marine took its rise in 1613, when the East India Company found it necessary to fit out for use only in Indian waters small vessels, which although employed to a certain extent in local carrying trade were sufficiently well armed to be of use in keeping in check the numerous native pirates who sought to prey upon the East Indiaman in those waters, and also to afford protection to the Company's vessels and factories against the ill-will of their European rivals, particularly the Portuguese. After the transfer of Bombay to the Company in 1668 that town developed into the principal seat of the Company's power, and the Indian Marine became known as the Bombay Marine. This gradually rose to such importance locally that from 1759 to 1829 a Captain of this service was annually appointed, as a deputy of the Company, to the post of Admiral of the Mogul Emperor, flying the flag of the Mogul at the main-mast-head and the Company's colours at the stern of his flagship. From the earliest years the Company's ships were in the habit of flying pendants, and the proclamations of 1694 and subsequent years that forbade the use of these flags by other than H.M. ships were not obeyed--perhaps their existence was not known--in Indian waters. From the beginning of the eighteenth century it became customary to describe the senior officer of the Bombay Marine as "Commodore," and for him to fly a broad pendant. This practice had never received the sanction of the home authorities, though Admiral Watson, who was in command of H.M. ships in the East Indies station from 1754 to 1757, appears to have approved of the use of a common pendant[316] by the Company's armed ships.