The document discusses reasons for the success of many emigrant Scots in building new lives in other parts of the British Empire from 1830-1939. It states that Scots often succeeded due to factors like their nationality, English language abilities, education levels, reputation for hard work, skills in demanded fields, establishment of businesses and communities, and support from the British government and other Scots abroad. However, not all emigrant Scots found success, as some faced problems like poverty, unemployment, and loneliness in their new homes.