CONTENTS. 



Section G.-MECHANICAL SCIENCE. 



THURSDAY, AUGUST 20. 



Pagre 



Address by T. Fokster Brown, M.Iost.C.E., President of the Section 749 



1. Report of the Estuaries Committee 757 



2. The Ystradyfodwg and Pontypridd Main Sewerage. By G. Ohatterton 757 



3. The River Usk, and the Harbour of Newport. By L. F. Vebnon-Hak- 



COURT, M.A., M.Inst.O.E., Engineer to the Newport Harbour Commission 757 



4. On Mechanical Ventilation and Heating of Buildings. By W. Key 758 



FBI DA T, A UO UST 21 . 



1. On the Channel Tubular Railway. By Sir Edward Reed, K.C.B , M.P., 



F.R.S 758 



2. Petroleum Oil-engines. By Professor William Robinson, M.E,, Assoc. 



M.lnst.C.E 759 



3 On the Revolving Purifier for the Treatment of Water by Metallic Iron. 

 By W. Anderson, D.C.L., F.R.S., M.lnst.C.E 762 



4. A Steady Platform for Guns, &c., at Sea. By Beauchamp Toweb 763 



5. Description of Lewis and Hunter's System of Coaling Ships. By C. 

 Hunter '. 763 



6. On some of the Peculiarities to be observed in Portland Cements, and on 

 the most advanced methods for determining their Constructive Value. 



By Henry Faija, M.lnst.C.E 764 



7. On the Compound Principle in the Transmission of Power by Compressed 

 Air. By Professor A. C. Elliott, D.Sc.(Edin.) 765 



8. Sinking Wells and Shafts. By Henry Datey, M.lnst.C.E 766 



MONDAY, AUGUST 24. 



1. The London-Paris Telephone. By W. H. Preece, F.R.S 767 



2. On the Telephoning of Great Cities. By A. R. Bennett, M.I.E.E 769 



3. Recent Progress in the Use of Electric Motors. By Professor G Forbes 



F.R.S 771 



4. On Electric Firedamp Indicators. By N. Watts 773 



5. The Lighting of Railway Trains Electrically. By I. A. Timmis 773 



TUESDA Y, A UG VST 25. 



1. An Electrical Parcel Exchange System. By A. R. Bennett, M.I.E.E.... 774 



2. The Bonier Hot-Air Engine. By M. Bonier 776 



3. On the Internal and External W^ork of Evaporation. By W. Wokby 

 Beaumont, M.lnst.C.E ' 777 



4. On a new System of Screw Propulsion with n on -reversible Engines Bv 



W. Wokby Beaumont, M.lnst.C.E .....[ . 770 



6. Action of Screw Propellers. By Major R. de Villamil, R.E 780 



