Civil Records of deaths were originally recorded from 1864 to 1877 inclusive.  These records are available at the Public Archives of Nova Scotia, 6016 University Avenue, Halifax, Nova Scotia, B3H 1W4.   Death records completed since October 1, 1908, are held with the Deputy Registrar General, P. O. Box 157, Halifax, NS  B3J 2M9.
Public Archives of Nova Scotia

You may also find information relating to these records at the Antigonish Heritage Museum, 20 East Main Street, Antigonish, NS  B2G 2E9.  Antigonish Heritage Museum

For more information, visit the Nova Scotia Vital Statistics new website at: Nova Scotia Vital Statistics

The Genealogical Society of Utah (The Church of Jesus Christ of Latter-day Saints [Mormom] has microfilmed records held by the Public Archives of Nova Scotia, including Marriages.  Microfilm copies may be borrowed from LDS branch libraries (Family History Centers).  Check for details here.