X CONTENTS. 



Page 



7. On the Intensity of Reflection from Glass and other Surfaces. By Lord 

 Raxleigh, D.C.L., LL.D., Sec.R.S ". 527 



8. A Note on some Observations of the Loss which Light suifers in passing 



through Glass. By Sir John Coneot, Bart., M.A 527 



9. On an Experiment showing that a Divided Electric Current may be greater 



in both branches than in the mains. By Lord Raxleigh, D.C.L., LLD., 

 Sec.R.S ". 527 



MONDAY, SEPTEMBER 6. 



1. Report of the Committee for preparing instructions for the practical work 



of Tidal Observation 527 



2. Fourth Report of the Committee for the Harmonic Analysis of Tidal 

 Observations 528 



3. Report of the Committee appointed to co-operate with the Scottish 

 Meteorological Society in making Meteorological Observations on Ben Nevis 528 



4. Third Report of the Committee appointed to co-operate with Mr. E. J. 

 Lowe in his project of establishing on a permanent and scientific basis 



a Meteorological Observatory near Chepstow 528 



■6. Second Report of the Committee for considering the best me^s of Com- 

 paring and Reducing Magnetic Observations 528 



6. Third Report of the Committee for considericg the best methods of Record- 

 ing the direct Litensity of Solar Radiation 528 



7. The peculiar Sunrise-Shadows of Adam's Peak in Ceylon. By the Hon. 



Ralph ABERCROirBX, F.R.Met.Soc 528 



8. On the Distribution of Temperature in Loch Lomond and Loch Katrine 



during the past Winter and Spring. By J. T. Morktsox, M.A 528 



9. On the Distribution of Temperature in the Firth of Clvde in April and 



June 1886. By J. T. Moerisox, M.A ' 529 



10. On the Temperature of the River Thurso. By Hugh Robert Mill, D.Sc. 

 F.R.S.E., F.C.S ". 530 



11. On the Normal Forms of Clouds. By A. F. Osler, F.R.S 530 



12. On a new Sunshine Recorder. By W. E. AVilson 533 



13. Second Report of the Committee for promoting Tidal Observations in 

 Canada 534 



14. Report of the Committee for inviting designs for a good Differential 

 Gravity Meter 534 



15. Description of a Differential Gravity Meter founded on the Flexure of a 



Spring. By Sir W. Thomson, LL.D., F.R.S 534 



16. Comparison of the Hai'court and Methven Photometric Standards. By 



W. Stepnex Rawsox, M.A 535 



17. Fuel Calorimetry. By B. H. Thwaite, F.C.S 536 



18. On Secular Experiments in Glasgow on the Elasticity of Wires. By 



J. T. BoxTOMLEx, M.A., F.R.S.E 537 



Mathematical Sub-Section. 



1. Report of the Committee for Calculating Tables of the Fundamental 



Invariants of Algebraic Forms 538 



2. On the Rule for Contracting the Process of Finding the Square Root of a 



Number. By Professor M. J. M. Hill 538 



