TRANSACTIONS OP THE ROYAL SOCIETY OF EDINBURGH

VOLUME LXIV, 1958-61

16. The Tertiary PoUen-Flora of Midi and Ardnamurchan. By J. B. SIMPSON, D.SC, F.R.S.E., F.G.S. (With Twenty Plates and One Table.) Price: 30s. (Issued December 22, 1961.) 17. Contributions to the Knowledge of Zosterophyllum myretonianum Penhallow from the Lower Old Red Sandstone of Angus. By K. M. LELE, Birbal Sahni Institute, Lucknow, and J. WALTON, . (With Two Plates.) Price: 6s. (Issued July 16, 1962.) 18. Tristichia ovensi gen. et sp. nov., a Protostelic Lower Carboniferous Pteridosperm from Berwickshire and East Lothian, with an Account of some Associated Seeds and Cupules. By ALBERT G. LONG, M.Sc, F.R.E.S., Berwickshire High School, Duns. Communicated by Professor JOHN WALTON, D.Sc. (With Four Plates and Two Text-figures.) Price: 8s. &d. (Issued July 16, 1962.)

VOLUME LXV, 1961-

1. Trilobites from the confinis Flags (Ordoviciari) of the Girvan District, Ayrshire. By RONALD PEAESON TRIPP. Communicated by Professor T. . (With Four Plates.) Price: 15s. (Issued August 3, 1962.)

2. Volcanic Neck Emplacement and Subsidence Structures at Dunbar, South-East Scotland. By E. HOWEL FRANCIS, B.SC, F.G.S. Communicated by Dr G. H. MITCHELL, F.R.S. (With Two Plates, Seven Text-figures and One Table.) Price: 8s. 6d. (Issued August 3, 1962.) 3. Gemuendenaspis n.gen., an Arthrodiran Fish from the Lower Devonian Hunsrilckschiefer of Germany. By R. S. MILES, B.SC, Department of Geology, King's College in the University of Durham, Newcastle upon Tyne. Communicated by Professor T. S. WESTOLL, F.R.S. (With One Plate and Three Text-figures.) Price: 8s. 6d. (Issued September 7, 1962.) 4. On the Fragmentary Remains of an Organism Referable to the Nematophytales, from the Rhynie Chert, Nematoplexus rhyniensis gen. et sp. nov. By A. G. LYON, B.SC, Ph.D., Department of Botany, University College, Cardiff. Communicated by Professor JOHN WALTON. (With Two Plates and One Text-figure.) Price: 6s. (Issued September 7, 1962.) 5. Further Observations on the Margin of the Laxfordian Complex of the Lewisian near Loch Laxford, Sutherland. By J. SUTTON, Ph.D. and , Ph.D. Communicated by Professor H. H. READ, F.R.S. (With Six Text-figures.) Price: 8s. 6d. (Issued December 28, 1962.)

6. The Petrology and Sedimentation of Upper Ordovician Rocks in the Rhinns of Galloway, South-west Scotland. By GILBERT KELLING, B.SC, Ph.D., F.G.S. Communicated by Professor F. H. STEWART. (With Seventeen Text-figures and Five Tables.) Price: 10s. Qd. (Issued December 28, 1962.)

Fellows of the Society purchasing publications for their own use will be allowed a special discount of 33,J per cent on the stated prices (see Law XVI).

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