Notes by E.B. Littlejohn and T.H. Kneen, "Sojourn experience-Tatura District. John Richards' year (first Diploma intake)." (A) Inflectometer in use. (B) Works are being explained by Leo Van Heetz (HRS staff), in white shirt, to a group of students.Colour photographs. (A) Students using an inflectometer. (B). Group of students standing on a dam. Leo van Heetz Explaining Irrigation Works.On reverse, "Kodak Colour Print made by Kodak ? June, 1960."sojourn experience, tatura district, john richards, irrigation system, tatura station, inflectometer, leo van heetz, students