an atypic pattern of the azygos venous system in man a rare variation of the azygos system found in an 84 year old man is described a doublecolumned azygos system runs in front of the spine and the azygos major crosses the superior lobe of the right lung and enters the right subclavian vein manufacturing inspection in ensuring sanitary and epidemiological wellbeing of the population the paper shows the role and place of manufacturing control over the observance of the sanitaryandepidemiological wellbeing of the population necessary conditions for the effective functioning of a manufacturing control system are formulated measurement of salivary thiocyanate during the process of smoking cessation the changes in salivary thiocyanate scn following smoking cessation were determined for 70 people recruited from communitybased smoking cessation programs data collected over 3 months following cessation showed a half value of 5 days for abstainers a strong linear relationship between scn level and number of days since quitting and considerable individual variation in precessation scn level it is concluded that scn has value as an inexpensive initial screening test of smoking behavior