SECTIONAL TRANSACTIONS.—F, G. 468 
Wallasey a difficult example. Bootle, St. Helens, and Warrington as industrial 
towns capable of expansion. London and Liverpool as examples of the large 
city. Why we re-house on the slum area. The difficulties of transport. 
Suggestions for the Future.—The tenement or the flat? Social Institutes. 
Progress by means of the linking up of tramways and railways. A proposal for 
the Liverpool area. Encouragement of house-purchase by means of Municipal 
tien The Unemployment Problem may be solved by a National Housing 
cheme. 
SECTION G.—ENGINEERING. 
(For references to the publication elsewhere of communications entered in 
the following list of transactions, see p. 505.) 
Thursday, September 13. 
1. Joint Discussion with Sections A and B on Cohesion and 
Molecular Forces. 
2. Joint Discussion with Section J on Vocational Tests for 
Engineering Trades. (See p. 482.) 
Friday, September 14. 
3. Presidential Address by Sir Henry Fowzer, K.B.E., on 
Transport and its Indebtedness to Science. (See p. 162.) 
4. Mr. A. E. Berrman.—Road Transport. 
___[ntroduction.—Kssential to consider the engineering side against a back- 
ground representing the broader political and commercial aspects of inland 
transport as a whole. Businesses most dependent on distribution can least 
afford to ignore any mode of conveyance that offers economic advantages. 
(1) Freight Transport by Road versus Rail—Railway freight charges and 
revenue. Causes of diversion of freight from rail to road. Comparison of direct 
cost by rail and by road. Importance of a high load factor. The Railway Bill 
for road transport powers. Fundamental technical advantages of rail traction. 
Need for increasing freight mobility on railways. Could more use be made of 
the container principle? 
(2) Types of Commercial Vehicles and their Suitability for Different Pur- 
poses.—Petrol, steam, petrol-electric, electric. Producer gas. ‘Semi-Diesel’ 
engines. Throttled efficiency. Six-wheeled vehicles and track machines. 
_ (8) Passenger Vehicles, Private and Public.—Private vehicles and private 
incomes. Motor-cycle with side-car. Front-wheel brakes. The high-speed 
engine. Influence of racing. Mean effective pressure and piston speed. The 
ondon bus. Railed traffic on road surfaces. The trolley *bus. Private hire 
services. The side-car taxi. The pneumatic tyre. 
_ (4) Roads Improvement and Traffic Control.—Mileage and classification. Cost 
of maintenance and the contribution from motor taxation. The rating con- 
troversy. Vehicle classification. Automatic traffic control by warning signs. 
- Can this be improved by adopting the principle of a right of way on the primary 
road at crossings? Traffic congestion in America. 
5. Col. E. O’Brien, D.S.0.—The Future of Railway Transporta- 
tion. 
The probability of future progress must be viewed in the light of the 
past. The introduction of railway transportation has had a profound influence 
on the mode of life of the human race; its further development may produce 
even more striking changes, more especially as the railway penetration of Asia 
‘and Africa progresses. The engineering development has been rather in improve- 
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