SCIENTIFIC PROCEEDINGS. 



VOLUME XV. 



1. The Subsidence of Torsional Oscillations and the Fatigue of Iron Wires when 



subjected to the Influence of Alternating Magnetic Fields of Frequencies up 

 to 250 per second. By William Brown, b.sc. (January, 1916.) 6d. 



2. Preliminary .Notes on the Carbohydrates of the Musci. By Thomas G. 



Mason, b.a., Diplom. Agrio. (February, 1916.) Gd. 

 :d. A New Form of very High Resistance for use with Electrometers. By John 



J. Dowling, m.a., m.e.i.a. (February, 1916.) Gd. 

 4. On the Bath of a small Permeable Body moving with Negligible Acceleration 



in a Bipolar Field. By Philip E. Bjslas, b.a., a.r.c.so.i., and Marous 



Hartog, m.a., d.sc. (n.u.i. ). (Plate 1.) (February, 1916.) Gd. 

 -5. The Change of Length in Nickel Wires of Different Rigidities, due to 



Alternating Magnetic Fields of Frequencies up to 150 per second. By 



William Brown, b.sc. (February, 1916.) Gd. 

 G. Osmotic Pressures in Plants. VI — On the Composition of the Sap in the 



Conducting Tracts of Trees at Different Levels and at Different Seasons of 



the Year. By Henry H. Dixon, scd. (dubl.), f.r.s. ; and W. R. G. Atkins, 



sc.d. (dubl.), f.i.c. (March, 1916.) Gd. 



7. The VerticilJium Disease of the Potato. By George H. Pethybridge, ph.d., 



b.sc. (Plates II-III.) (March, 1916.) Is. Gd. 



8. On the Boiling-points and Critical Temperatures of Homologous Compounds. 



By Sydney Young, d.sc, f.r.s. (April, 1916.) Gd. 



9. The Subsidence of Torsional Oscillations of Nickel Wires when subjected to 



the influence of Transverse Magnetic Fields up to 200 C.G.S. Units. 



By William Brown, b.sc. (April, 1916.) Gd. 

 10. On the Hydrocarbons of Beeswax. By Hugh Ryan, d.sc, and Thomas 



Dillon, d.sc (May, 1916.) Gd. 

 .11. On Desoxy-Hydrocatechin-Tetratnethyl-Ether. By Hugh Ryan, d.sc, and 



Michael J. Walsh, m.sc (May, 1916.) Gd. 

 12. The Change of Length in Nickel Wires due to Transverse Magnetic Fields 



Direct and Alternating. By William Brown, b.sc (May, 1916.) Gd. 

 IS. The Subsidence of Torsional Oscillations of Nickel and Iron Wires when 



subjected to the Influence of Transverse Magnetic Fields up to 800 C.G.S. 



Units. By William Brown, b.sc (May, 1916.) Gd. 

 .14. Note on Laminated Magnets. By William Brown, b.sc (June, 1916.) Gd. 



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 Rabbit. By Edmond J. 



Sheehy, a.r.c.so.i. (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. Rka, 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. Gd. 



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

 Tuber in the British Isles. By George H. Pethybeidge. 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. 



•28. SpermolitMcs Devonicus, 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. 



