THE National Museum of Canada, the Annual Report of which for 1929 has just been published, attains a happy balance in its combination of field and indoor work. During the summer months the members of the staff are engaged in field work broadly distributed throughout Canada, a tradition doubtless derived from the Museum's close connexion with the Geological Survey. The result is of value scientifically and educationally. Ethnological expeditions in many areas, the investigation of the mammals of British Columbia and of the plants of Wood Buffalo Park, add material to the collections and valuable experience to the collectors, who take the opportunity of delivering popular lectures in the districts they visit. In the Museum itself great stress is laid upon the need for making a reasonable contribution to the interests of the community, and the variety of the titles in the list of the two popular lecture courses, delivered during the winter in the auditorium, indicate one way in which that contribution is successfully made. Nearly 9000 children attended the Saturday morning lectures and 3323 adults those on Wednesday evenings.