With this instalment, we conclude our presentation of expeditions and historical events in northern Canada. Although we end here at about 1909, we have compiled the list up to 1920, a termination date chosen because the introduction of aircraft to northern Canada at about that time brought very many more persons into the region, and the list, to be continued after that date, would have to be conducted on different principles. We have presented these instalments in Polar Record as a means of preliminary publication, hoping that such appearance would elicit corrections and additions from readers before our work is published in full, not only with the entries seen in these pages, but also with an extensive roster of the names of persons associated with the expeditions described, a list of ships, a topical and regional index, and a supporting bibliography for each entry. Discussion is now going forward with officers of the Human History Division, National Museum of Man, Ottawa, the department that has financed this work, about full publication. We should like to take this opportunity to thank the National Museum of Man for its support, to acknowledge the permission of the Governor and Committee of the Hudson's Bay Company, whose archives we have used, to include hitherto unpublished dates and facts, and to say that we have greatly enjoyed the work of compiling this list and have especially enjoyed corresponding with the many persons who have written to us about it.