Nutrition
in animal physiology, the function exercised in the growth and development of the body. The blood in the capillaries is the source from which all the tissues derive their nutrition, the process of cell growth carries on the materials for it being prepared in the carries on the blood; then each individual part by a process of cell growth car work. In vegetable physiology, it consists of seven processes: absorption, cirphur, iron, calcium, potassium, magcretion, assimilation, and growth. The nutrient substances-some of them essential and all of them useful-are carbon , oxygen, nitrogen, hydrogen, sulsince 1907 the name given to a part of abound in edible fish. The lake was The waters of the lake are sweet and practically the region in which the Af- rican Lakes Company of Glasgow car- ried on operations since its foundation in 1878; it works with the missionaries the 17th century, but Livingston in 1859 first fixed its situation and navigated it.
NYASSALAND PROTECTORATE, since 1907 the name given to a part of British Central Africa, immediately practically the region in which the Af- W. and N. W. of Lake Nyassa. It is ate is 42,217 square miles. Pop. (1916) nesium, phosphorus, sodium and chlorine. ried on operations since its foundation