Sleep and Altered States of Consciousness.
Baltimore: Williams & Wilkins, 1967. 211 illustrations, 25 tables, tall 8vo, burgundy cloth. Baltimore, 1967. Very good (+). Volume 45. More
SLEEP
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Ueber die Ursache des Schlafes.
Stuttgart: Ferdinand Enke, 1877. Ein Vortrag gehalten in der ersten allgemeinen Sitzung der 49 Versammlung deutscher Naturforscher und Aerzte in Hamburg am 18. September 1876. 8vo, original yellow printed wrappers; unopened. Stuttgart, 1877. First Edition. Near Fine. Preyer (1841-1897) is best known for his lactic- acid theory of sleep and for his work in child psychology. More
Das Problem des Schlafs.; Biologische und psychophysiologisch betrachtet.
Wiesbaden: Bergmann, 1912. 13 text figures. 89 pages. Slim, tall 8vo, blue cloth. Wiesbaden: Bergmann, 1912. Very good (+). The problem of sleep in plants and animals. More
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