Contents. 



XXVI. — Vapour Pressure Apparatus. By James J. Hutchinson, 



XXVII.— Formation of Sand-ripples. By J. Joly, B.A.I., D.Sc, F.R.S., 

 F.G.S., Professor of Geology and Mineralogy in the University 

 of Dublin, .......... 



XXVIII. — On a Method in Qualitative Analysis for Determining the presence 

 of certain Metallic Oxides. By Charles E. C. Tichborne, 

 F.I.C., Dip. P.H., F.C.S., etc., 



PAGE 



325 



328 



331 



PART III. 



XXIX. — The Temperature of Healthy Dairy Cattle. By G. H. Wooldridge 

 M.R.C.V.S., Professor of Medicine, Royal Veterinary College of 

 Ireland, .......... 



XXX. — On the Petrological Examination of Road Metal. By J. Joly 

 D.Sc, F.R.S., Professor of Geology and Mineralogy in the 

 University of Dublin. (Plate XXXII. ), .... 



XXXI. 



XXXII, 



-On the Construction of Fume-Chambers with Effective Ventilation 

 By Walter Noel Hartley, D.Sc, F.R.S. (Plate XXXIII.) 



-On the Structure of "Water-jets, and the effect of Sound thereon 

 Part II. By Philip E. Belas, A.R.C.Sc.I. With Note on 

 Combination -Tones. By Professor W. .F. Barrett, F.R.S 

 (Plate XXXIV.), . . . . 



XXXIII. — Notes on the Constitution of Nitric Acid' and its Hydrates. By 

 Walter Noel Hartley, D.Sc, F.R.S., 



XXXIV— On Floating Breakwaters. By J. Joly, ScD., F.R.S., Professoi 

 of Geology and Mineralogy in the University of Dublin, Hon 

 Sec. Royal Dublin Society. (Plates XXXV., XXXVI.), 



335 



340 



351 



360 



373 



378 



INDEX, 



385 



