James Milledge

Alveolar gas composition at 21,000 to 25,700 ft. (6400–7830 m)

SUMMARY 1. Duringtherecent Himalayanexpedition alveolar gas samples werecollected by the Haldane-Priestley technique at altitudes of 21,000 ft. (6400m), 24,400ft. (7400 m) and25,700ft. (7830m)where thebarometric pressures were 344, 300 and288mmHg,respectively.2. The meanalveolar pCO2 at the three altitudes were 20-7, 15-8 and14-3mmHg,respectively; themeanalveolar PO2 were38-1, 33-7 and32-8mm Hg,respectively. 3. Byplotting the alveolar gas points on an 02, CO2 diagram, it isshown that they lie between the lines drawn by Rahn & Otis (1949b)giving the alveolar gas compositions of men acutely exposed to low pressures and of men acclimatized to high altitudes. Theseresults are con-sistent with the altitude history ofthe subjects, and agree well with thecurve predicted fromdatapreviously collected on MountEverest. The Expedition was sponsored by Field Enterprises Educational Corporation, and the measurements were made possible by the co-operation of all membersof the Expedition.Miss P. Dean

Central nervous system

This text, reviewed to reflect new information as well as understanding of student needs for critical thinking, contains the systematic, in-depth coverage of topics of great clinical interest. It seamlessly integrates data from all fields of neuroscience as well as clinical neurology and psychology. This textbook presents the functional properties of clinically-relevant disorders by incorporating data from molecular biology to clinical neurology.Key features:Chapters knit together by numerous cross-references and explanations, helping the reader to connect data.Carefully selected full color line drawings of the complexities of the nervous system.Extensive use of text-boxes provides in-depth material without disturbing the flow of reading.Provides a crucial list of references for further reading.While most neurological textbooks are cobbled together by multiple authors on a variety of topics within the field, Dr. Brodal pulls together a cohesive and comprehensive guide to neuroscience. This book reflects Dr. Brodals concise and easy-to-read style, encouraging reflection and critical thinking in established facts and scientific conjecture. This is the perfect reference for medical, graduate, and undergraduate students alike.