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Survey of the sputum cytology service in England and Wales. N. C. OSWALD, KL F. W. HINSON, G. CANTI, 0. A. N. HUSAIN, D. J. GIRLING, RUTH TALL, R. J. STEPHENS, and WALLACEPOX...... 489 The lungs in lymphangiomyomatosis and in tuberous sclerosis. P. G. I. STOVIN, L. C. LUM, C. D. R. FLOWER, C. S. DARKE, and M. BEELEY...... 497 Physiological activity in mediastinal teratomata. B. C. SOMMERLAD, W. P. CLELAND, and NEN K. YONG...... 510 Primary sarcoma of the lung. E. W. J. CAMERON...... 516 Surgical stabilization of traumatic flail chest. F. PARIS, V. TARAZONA, E. BLASCO, A. CANTO, M. CASILIAS, L. PASTOR, M. PARIS, and R. MONTERO...*...... 521

Fascia lata valves: a clinicopathological study. E. G. J. OLSEN, N. AL-JANABI, C. S. http://thorax.bmj.com/ sALAmA6, and D. N. ROSS...... 528 Coronary artery fistula: report of three cases. D. WHEATLEY, E. N. COLEMAN, and J. M. REID..... 535 Oesophagomyotomy for achalasia of the cardia. c. SARIYANNIS and K. S. MULLARD. 539 Effect of atropine on sputum production. M. T. LOPEZ-VIDRIERO, J. COSTELLO, T. J. RL CLARK, I. DAS, E. E. KEAL, ad X. REID..... 543 Variability of routine pulmonary function tests. Y. HRuBY and J. BUTLER ...... 548 Forced expiratory time-its reliability as a lung function test. J. B. MACDONALD, on September 23, 2021 by guest. Protected copyright. T. 3. COLE, and A. SEATON...... 554 Plasma levels of carcinoembryonic antigen in bronchial carcinoma and chronic bronchitis. R. PAUWELS and M;VAN DER STRAETEN . . 560 Effect of lung resection for bronchial carcinoma on pulmonary function in patients with and without chronic obstructive bronchitis. J. S. LEGGE and KL N. V. PALMER...... 563 Use of an ear oximeter to assess lung function. REIAH AL-DULYMI and R. HAINSWORTH...... 566 Performance of heat exchangers used in whole body perfusion circuits. D. W. BETHUNE, R. D. GILL, and D. R. WHEELDON ...... 569 Pulmonary function in tropical eosinophilia before and after treatment with diethylcarbamazine. M. S. NESARAJAH ...... 574 Hypothalamo-pituitary-adrenal function in intrinsic non-atopic asthma. J. V. COLLINS, D. BELLAMY, M G. BRrTON, J. TOWNSEND, and D. J. BROWN ...... 578 An intrapulmonary teratoma associated with thymic tissue. D. W. DAY and S. A. TAYLOR ...... 582 Thymic lymphoma-an unusual presentation. N. M. EISER and A. A. R. SAMARRAI .... 588 Proceedings of The Thoracic Society...... 592

BRITISH MEDICAL ASSOCIATION, TAVISTOCK SQUARE, LONDON, WCIH 9JR ASTM CODEN: THORA 7 30 (5) 489--6W 1975 ISSN 0040-6376