CONTENTS. xxl 
WEDNESDAY, AUGUST 24. 
Page 
1. The Modification of the Income-tax. By W.G.S. ADAMS.......0....5..0 663 
2. A proposed Substitute for the Sugar-tax. By Barnarp ELLINGER ...... 664 
3. Some Features of the Labour Question in America. By C. J. Haminron 665 
4, The Employment of the Graduate. By H. A. Ropurts, M.A. .........+. 666 
Section G.—ENGINEERING. 
THURSDAY, AUGUST 18. 
Address by the Hon. C. A. Parsons, M.A., F.R.S., President of the Section 667 
1. *The Origin of Sand Ripples. By Mrs. HERTHA AYRTON ........ceeeeeeees 676 
FRIDAY, AUGUST 19. 
1. tFlame Temperatures in Internal Combustion. By Ducatp Currx ...... 676 
2. *On the Specific Heat of Gases at High Temperatures. By Professor 
tere DRONE Es EAS eee re dorcdeesctiee cere aidneceddcossaasesates ctpsedaeeneesons 676 
3. tExhaust Gas Calorimetry. By Professor B. Horxrinson, M.A, »......... 676 
4, +The Effect of Receiver Drop in a Compound Engine, By J. W. Hay- 
ROPERS ENE arc cts tues. .dusauiduusseepiertcs saechenseuaragennontdoeameazinn ins «moa 676 
5. Superheated Steam: Wire-drawing and other Experiments.. By A. H. 
TUDO Bs A a dace eR nose so ncd ei nnge Raseecu gia teotea ste seerbeoboanda 37cun SoeMMBaer 676 
MONDAY, AUGUST 22 
1. Electricity from Water-Power. By A. A. CAMPBELL SWINTON............ 677 
2. The Use of Electricity on the North-Kastern Bailveny and on Tyneside. 
By ©. H. Merz and W. McLELLAN ........:scceeseeeeceenseeeectenesen seen ecees 678 
8. tTesting Alternating-current Induction Motors by a Hopkinson Method. 
By W. E. Sumpner and R. W. WEEKES.........006..seceseessseseeeseneeee ers 679 
4, Energy Losses in Magnetising Iron. By W. M. Morpny and A, G. 
MMPI he pet eo atten k seats snadonsbabubws ncnncescventuecnen «a cenketeee=rt) omnes 679 
5. {Distribution of Magnetic Induction in Multipolar Armatures. By W. M. 
PETORITON, coos sce s cee cess asitcossacueosiesdederececsessifelssnvasesiisnssgue¥art=nalestors 682 
6. On Large Bulb Incandescent Electric Lamps as Secondary Standards of 
Light. By Professor J. A. Fremine, M.A., D.Sc., FBS. oo... eee 682 
7. Some Investigations on the Ten-candle Power Harcourt Pentane Lamp 
made at the National Physical Laboratory. By Ciirrorp C. Parerson 683 
TUESDAY, AUGUST 23. 
1, Report on the Tidal Régime of the River Mersey (p. 318) «......0::.ee..eee 684 
2, +The Control of the Nile. By Major Sir Hansury Brown, K.C.M.G..., 684 
3. A Universal Testing Machine of 300 tons for Full-sized Structural 
Members. By J. H. Wioxsrpen, Pres.Inst.Mech.E. ...........sesseeeeeeees 684 
4, +The Effect of Rapidly Alternating Stresses on Structural Steels. By 
Professor J), O. A RNOLD. ......ccoennccsscvansonce sieseresestarscensreeccaensesnsases 684. 
5. The Production of Magnetic Alloys from Non-magnetic Metals. By R. A 
MMPPUACEEATAY | Wacuvspaecstsesrcasaccvaxsssqecsdsvevsdcudensicaccsvsesrtatsseoctiyecccerssres 685 
6. *Indicator Tests on a small Petrol Engine. By Professor H. L. Cat- 
HENGDV AUREL EUs eter re vscacecarevertccecersccucesesssnestsioscosccbecventeccctocsssessens 686 
