The author has studied the mechanism which produces remote me-tastases in laryngeal and hypo-pharyngeal cancer and the line of approach: by necropsy, which is the most scientific, and by clinical observation, which is the most convenient in medical practice. The author's material has shown a predominance in the male and where the primary lesion is of degree 2 or 3. It shows also the predominant localizations of primary lesions and metastases, remote metastasis of cured carcinomas and the rare metastasis in the larynx and the hypo-pharynx of malignant tumours of other organs.