Christmas tree cultivation and oxygen. Nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, copper, chlorine, manganese, molybdenum, iron, and zinc are obtained from the soil. If the necessary elements are not available in the local soil, nutritious fertilizers are used. Other important soil considerations include pH and drainage. Certain types of soil are preferable, depending on the type of tree. Pine trees are usually better adapted to a sandy or sandy loam soil, while white spruce trees and fir trees, such as the Douglas-fir, prefer fine-texture loams and clay loam soils. Some trees grow well in all types of soil, but in any case,
Fraser Noble 1938. He did military service with the Black Watch (Royal Highland Regiment). In 1962 he became Vice-Chancellor of the University of Leicester at the age of 43. The University of Leicester now has the Fraser Noble Building. In 1962 the university had 1,500 students and two faculties of Arts and Sciences. By the time he left, the university had five faculties and 6,000 students. Thanks to him, the Royal Commission on Medical Education (1965-68) in its 1968 report decided that the university needed a medical school. From 1970-72 he was Chairman of the Committee of Vice-Chancellors and Principals of the