Kōrero: Soil investigation

Soils and teeth

Once the soil survey of the North Island was completed, in 1942, it was possible to relate soil type to other factors. This newsreel clip shows how tooth decay appeared to be related to local variations in soil type.

Te whakamahi i tēnei tūemi

Archives New Zealand - Te Rua Mahara o te Kāwanatanga
Reference: Pictorial Parade 53, National Film Unit, 1956

Ngā whakaahua me ngā rauemi katoa o tēnei kōrero

Te tuhi tohutoro mō tēnei whārangi:

P. J. Tonkin, 'Soil investigation - Golden age of soil survey: 1951–1985', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/video/14194/soils-and-teeth (accessed 5 June 2020)

He kōrero nā P. J. Tonkin, i tāngia i te 24 Sep 2007