The bank continued to grow with the opening of new branches in the early 20th century. In 1906, the Bank of Nova Scotia opened a branch in Havana, Cuba, followed by a branch in New York City in the following year. In 1910, the bank opened a branch in San Juan, Puerto Rico. The bank also grew with the merger and acquisition of other banks, including the Bank of New Brunswick in 1913, and the Toronto-based Metropolitan Bank in 1914. The acquisition of Metropolitan Bank made the Bank of Nova Scotia the fourth largest financial institution in Canada at that time. In 1919, the bank amalgamated with the Bank of Ottawa.