SCIENTIFIC PROCEEDINGS— continued. 



15. On the Mode of Occurrence and Origin of the Orbicular Granite of Mullaghderg, 



Co. Donegal. By Grenville A. J. Cole m.r.i.a., f.g.s. (Plates IV-V.) 

 (October, 1916.) Is. 



16. An Abnormality in the Arterial System of the Eabbit. By Edmond J. 



Sheehy, a.r.c.sci. (December, 1916.) Gd. 



17. The Fatigue of Nickel and Iron Wires when subjected to the Influence- 



of Transverse Alternating Magnetic Fields. By William Brown, b.sc. 

 (January, 1917). Gd. 



18. The Chemistry of Foul Mud Deposits. By E. A. Letts, d.sc., &c, and 



Florence W. Bea, b.sc. (January, 1917.) Gd. 



19. Award of the Boyle Medal to Professor Henry Horatio Dixon, sc.d., f.r.s., 



1916. (January, 1917). Gd. 



20. The Change in Young's Modulus of Nickel with Magnetic Fields. By 



William Brown, b.sc April, 1917. 6cZ. 



21. Further Observations on the Cause of the Common Dry-Eot of the Potato 



Tuber in the British Isles. By George H. Pethybridge. b.sc, ph.d., and 

 H. A. Lafferty. (Plates VI- VII.) (June, 1917.) Is. Gd. 



22. The Gymnosomatous Pteropoda of the Coasts of Ireland. By Anne L. Massy. 



(Plate VIII.) (July, 1917.) Is. 



23. Spermolithus Iievonicus, gen. et sp. nov., and other Pteridosperms from the 



Upper Devonian Beds at Kiltorcan, Co. Kilkenny. By Thomas Johnson, 

 d.sc, f.l.s. (Plates IX-XIV.) (August, 1917.) Is. Gd. 



24. The Genus Taenitis, with some Notes on the remaining Taenitidinae. By 



Elizabeth J. Leonard, m.sc. (Plate XV.) (February, 1918). Is. 

 '25. The Quantitative Spectra of Lithium, Bubidium, Caesium, and Gold. By 



A. G. G. Leonard, a.r.c.sci., b.sc, ph.d., and P. Whelan, a.r.c.sci. 

 (Plate XVI.) (February, 1918.) Gd. 



26. The Polarisation of a Leclanche Cell. By Felix E. Hackett, ph.d., and 



B. J. Feely, a.r.c.sci. (March, 1918.) 6d. 



27. The Electrical Besistance of Porcelain at Different Temperatures. By B. G. 



Allen, b.sc, lond. ; a.r.c.sci. (June, 1918.) Is. 



28. Observations on the Morphology of Larix leptoleins. By Joseph Doyle,. 



b.a., m.sc (Plates XVII-XVIII.) (August, 1918.) Is. 



29. The Insulating Properties of Erinoid. By K. G. Allen, b.sc (lond.), a.r.c.sci. 



(August, 1918.) Is. 



30. A Disease of Flax Seedlings caused by a species of Colletotrichum, and trans- 



mitted by Infected Seed. By George H. Pethybridge, b.sc, ph.d., and 

 H. A. Laeferty, a.r.c.sci. (Plates XIX-XX.) (August, 1918.) Is. Gd. 



31. The Determination of the Bate of Solution of Atmospheric Nitrogen and 



Oxygen by Water. Part I. By W. E. Adeney, d.sc, a.r.c.sci., f.i.c, and. 

 H. G. Becker, a.r.c.sci. (Plate XXI.) (August, 1918.) Is. 



DUBLIN : PRINTED AT THE UNIVERSITY PRESS BY PONSONRY AND GIBhS. 



