“…Buxton and Southam (1958) found that 8 out of 71 patients and Behrman and Poppy (1957) that 6 out of 38 patients with apparent tubal occlusion on hysterosalpingography became pregnant without treatment. This and what is known about tubal spasm helps to throw some doubt on the claims that single or repeated hysterosalpingography alone (Grant and McKey, 1948;Funola, 1964;Roland, 1968) particularly with an oily contrast medium (Green-Armytage, 1943 ; Gillespie, 1965;Wahby et al, 1966) or in combination with carbon dioxide insufflation (Roland, 1963), had a therapeutic effect.…”