Table of Content.- I: Free Papers I.- Comments on the Significance of Economic Arguments in the Health-Care Sector.- Comparative Pharmacokinetics of Fentanyl and Alfentanil.- Pharmacokinetic Data of Fentanyl, Midazolam and Enflurane as Obtained by a New Method for Arbitary Schemes of Administration.- Disposition of Alfentanil, a New Analgesic Agent, in Man.- Effect of Spinal Morphine on the Electrophysiological Activity of the Ureter in the Rabbit.- Spinal Block with Lignocaine and Fentanyl for Ender Nailing in the Elderly.- Epidural Morphine in Obstetric Analgesia.- Ventilatory Effects of Epidural Diamorphine — A Comparison with Epidural Lignocaine.- Effects of Epidural Analgesia with Etidocaine and Morphinics on Endocrine function.- Respiratory Depression with Buprenorphine: Onset Time and Reversal.- Effects of Almitrine on Respiratory Depression During Enflurane Anaesthesia.- Diazepam Reduces Lower Oesophageal Sphincter Pressure.- Monitoring of the Electroencephalogram and Electromyogram During Anaesthesia.- Heterozygotes for Atypical Cholinesterase.- Intubating Conditions with Org NC 45: A Comparison with Suxamethonium and Pancuronium.- Reversibility by Neostigmine of an Org NC 45 Neuromuscular Blockade Under Halothane and Enflurane Anaesthesia in the Cat.- Drug Interactions with Local Anaesthetics.- The Effect of Some Premedicants on the Cardiovascular System.- Althesin and Alfentanyl for Minor Surgery.- II: Invasive and Non-invasive Circulatory Measurement.- Indices of Myocardial Performance.- Direct Measurement of Arterial Pressure and Derived Variables.- Direct Measurement of Left Ventricular Pressure in Man.- Swan-Ganz Catheterisation — Application, Interpretation and Limitations.- Coronary Blood Flow — Inert Gas Methods.- Coronary Sinus Catheterisation and Measurement of Coronary Sinus Blood Flow by the Continuous Thermodilution Method.- Physical Principles of Ultrasonics in Cardiovascular Measurements.- Clinical Applications of Echocardiography in Anaesthesia.- Systolic Time Intervals — What Do They Really Measure?.- Possibilities and Limitations of Thoracic Impedance Cardiography.- Noninvasive Measurement of Pulmonary Blood Flow and Tissue Volume Using the Inert-Gas Technique.- III: Free Papers II.- Plasma Catecholamine Concentrations and Haemodynamic Studies During Phaeochromocytoma Resection.- The Effects of Thiopentone on Pulmonary Circulation.- Obstetric Analgesia with Fentanyl-Bupivacaine by the Extradural Route.- Etodolac in Postsurgical Pain: Double-Blind, Dose-Ranging Efficacy Study with Aspirin and Placebo.- Plasma and Cerebrospinal Fluid Amino Acid Distribution Rations in Hypercapnia.- Anaesthesia in Patients with Obstructive Jaundice.- Radiocardiography in the Intensive Care Unit: Preliminary Report.- Pharmacokinetics of Fentanyl in Children.- EEG Analysis and the Clinical Effects of Levonantradol in Human Volunteers.- Echocardiographic Assessment of Left Ventricular Function Following Induction of Anaesthesia with Althesin.- Relationship Between End-diastolic Cardiac Size and Ventricular Function Under Increasing Doses of Enflurane in Intact, Chronically Instrumented Dogs.- Dextran vs Albumin Haemodilution in Hip Surgery.- Microcirculatory Effects of Deliberate Hypotension.- Arterial Hypertension as a Contributory Factor to the Risks from Anaesthesia and Surgery in Patients with Myocardial Infarction.- Continuous Recording of the Transcutaneous Po2 in Paediatric Anaesthesia.- Cardiovascular Responses to Combined Apnoea and Face Immersion in Exercising Man.- The Syndrome of Pulmonary Fat Embolism: Clinical, Physiopathological and Therapeutic Considerations.- Effects of Alterations in Blood-Gas Tensions on the Responsiveness on the Cerebral Circulation One Week After the Induction of Subarachnoid Haemorrhage.- Control of Intracranial Pressure During Intensive Care.- Trials of Audio tape-slide Techniques in Teaching.