“…It has thus become evident that the chief or glomus cells of the carotid body, without a single exception, contain catecholamines (RAHN, 1961;NIEMI and OJARA, 1964;BLUMCKE, RODE and NIEDORF, 1967;DEARNALEY, FILLENZ and WOODS 1968; UEHARA in press). Nor has an exception been found to the generalization that the chief cells of the carotid body contain more or less numerous specific dense granules first described in 1957 by LEVER and BOYD (LEVER, LEWIS and BOYD, 1959;BISCOE and STEHBENS, 1966;HESS, 1968;KOBAYASHI, 1968).…”