Note by T.H. Kneen, "An important adjunct to the facilities of the Biology Branch located at the Plant Research Laboratory. The presence of insect proof cages within the large enclosure suggests the photo is post WWII. Eventually the P.R.L. (Plant Research Laboratory) Developed adequate facilities close to the Laboratory and the ground was resumed for the use of the College. The large tree in the foreground is an apricot-across the path are pear trees. The cage was located approximately in the centre of the Orchard."Black and white photograph. Bird/insect proof cage used for research by the Plant Research Laboratory/Institute. In the centre of the Orchard/Field Station. Large apricot tree in the foreground and across a path, pear trees.plant research laboratory, p.r.l., pear trees, orchard, biology branch, bird proof cage, insect proof cage, plant research institute, p.r.i., apricot tree, field station, department of agriculture