Citrus Limonum. Lemon. N. O. Rutaceae. Expressed juice.   Clinical.-Cancer. Constipation. Convulsive fits (Stramonium and other poisonings). Diarrhoea. Dropsy. Dysentery. Dyspnoea. Haemorrhage. Rheumatism. Scurvy. Splenitis. Sunstroke.   Characteristics.-In the observations