CONTENTS

BROOKFIELD, M. E. The age of the Allt na Cuile Sandstones (Upper Jurassic,

Sutherland) 181

WINCHESTER, j . A. Different Moinian amphibolite suites in northern Ross-shire. 187

TREWIN, NIGEL H. Correlation of the Achanarras and Sandwick Fish Beds,

Middle Old Red Sandstone, Scotland. . . . . . . 205 POLLARD, j . E. and LOVELL, J. P. B. Trace Fossils from the Permo-Triassic of

Arran. . . . . . . . . . . . . 209

FETTES, D. j . , GRAHAM, c. M. , SASSI, F. p. and SCOLARI, A. The basal spacing of

potassic white micas and facies series variation across the Caledonides. . 227

RICHARDSON, s. w. and POWBLL, R. Thermal causes of Dalradian metamor-phism in the central Highlands of Scotland 237

LETTER TO THE EDITORS

TRBAGUS, J. G 269

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