vi Contents. 



No. PAGE 



■XXXVIII. — Changes in Soils brought about by Heating. By Miss A. 



Wilson, b.a. (May, 1915.) . . . .513 



XXXIX. — The Subsidence of Torsional Oscillations and the Fatigue of 

 Nickel Wires when subjected to the influence of Alternating 

 Magnetic Fields of Frequencies up to 250 per second. By 

 William Beown, b.so. (June, 1915.) . . . 521 



XL. — A Method for the Estimation of Hygroscopic Moisture in Soils. 



By W. D. Haigh, b.sc, a.k.c.sc.i. (July, 1915.) . . 529 



XLI. — On the Faunal' Zones of the Eush-Skerries Carboniferous 

 Section, Co. Dublin. By Louis B. Smyth, b.a., b.so. 

 (Plates XXXV-XXXVII.) (August, 1915.) . . 535 



