Urine analysis of a sample of smoking cessation subjects conducted at Chelsea College of Science and Technology Correspondence, project brief, memoranda and list of results of urine tests for nicotine and cotinine levels in smoking cessation clinic volunteers. Dr Hamilton requested a sample of 30 specimens to be analysed by Professor Arnold H Beckett, School of Pharmacy, Chelsea College of Science and Technology. Result tables also include additional comments on smoking habits of volunteers. 1971