Under 5 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,103 5.7 5 to 9 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,333 6.9 10 to 14 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,542 8.0 15 to 19 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,417 7.3 20 to 24 years . . . . . . . . . . . . . . . . ....

Under 5 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247 5.9 5 to 9 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 4.9 10 to 14 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 5.0 15 to 19 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 5.6 20 to 24 years . . . . . . . . . . . . . . . . . . . . ....

Journal of Neurology Neurosurgery & Psychiatry (ISSN No: 0022-3050) is published monthly by BMJ Publishing Group and distributed in the USA by Mercury International Ltd. as mailing agent. Periodicals postage paid at Rahway, NJ. POSTMASTER: send address changes to Journal of Neurology Neurosurgery & Psychiatry, Mercury International Ltd, 365 Blair Road, Avenel, NJ, 07001, USA. Editorial commenta...

H. Salt, Transient conduction in two-dimensional composite slab--I. Theoretical development of temperature modes, ht. J. Heat Mass Transfer 26, 1611-1616 (1983). H. Salt, Transient conduction in two-dimensional composite slab--II. Physical interpretation of temperature modes, ht. J. Heat Mass Transfe 26,1617-1623 (1983). M. D. Mikhailov, General solutions of heat equation in finite regions. ht....

Scientific Noltes and News ..583 University and Educational Notes .......................... 587 Disewsion and Correspondence: Tryparsamide: PROFESSOR A. S. LOEVENHART. Is an International List of Genera of Cultivated Plants Possible? DR. ALFRED GUNDERSEN. Note on the Geographical Distribution of the Protozoan Genus Cryptochiluim Maupas: PROFESSOR A. W. L. BRAY. The Losses in Trout Fry after Di...

CONTENTS INTRODUCTION ..................................................................................................................... 586 WHAT INVERTEBRATES LE RN ........................................................................................ 586 Physiologically Analyzed Learning Paradigms ................................................................... 587 Choice ofParadigms ...