SECTIONAL TRANSACTIONS.— F, G. 381 



11. Miss H. Reynard. — Human Motive in Induslry. 



Tlie need of an adequate appreciation of tlie motives underlying our indus- 

 trial organisation. The machinery which served in the past and might still be 

 best adapted to the satisfaction of our material needs will not work if human 

 motive ceases to supply the power. The psychology of the business man. The 

 strength and weakness of his position. The development of joint-stock enter- 

 prise has surrendered one of the most important positions of capitalistic institu- 

 tions. The psychology of the worker. His attitude towards (a) Payment by 

 result; (6) the making of profits; (c) the control of industry. The necessity 

 for finding a modus vivcndi. The two essential questions to which an answer 

 must be found : (1) What is a reasonable profit? (2) What measure of control 

 ought the worker to have? 



Wednesday, September 13. 



12. Mr. J. E. Allen. — Report of Covtviittee on Credit, Currency, 

 and Finance. (See p. 319.) 



SECTION G— ENGINEERING. 



(For references to the publication elsewhere of communications entered in the 

 following list of transactions, see p. 409.) 



Thursday, September 7. 



1. Discussion on The Strength of Railway bridges. 



(a) Mr. J. S. Wilson. — Introductory Statement. 



{b) Mr. A. G. Cookson and Mr. J. S. Nicholas. — The Strength. 

 of Railway Bridges, with special reference to the proposals of 

 the Ministry of Transport. 



The Ministry of Transport have concluded, as a result of certain tests carried 

 out by their officers, that on many British railways insufficient provision has 

 been made for the effect of the liva load. It is suggested in this paper that 

 their conclusions are not correct interpretations of their observations, and that 

 those tests, as well as many others carried out elsewhere, prove beyond doubt 

 that bridgework in this country is much stronger than is generally believed. 

 The authors confirm their opinion by reference to certain old structures still 

 carrying main-line traffic without restriction ; calculations and actual stress 

 measurements are given. Important discrepancies between calculated and 

 observed stresses are pointed out, and the authors emphasise the view that 

 the life and endurance of existing bridges as determined by experienced main- 

 tenance engineers is the only reliable criterion. Rules based on sixty years' 

 maintenance experience are suggested. 



(c) Mr. Conrad Gribble. — Present-day Problems and Tendencies 

 in Railway Bridge Design. 



Desire for economy through {a) durability, {h) accuracy of design — Difference 

 between bridge problems in Great Britain and abroad, our work being principally 

 maintenance and renewal — Increased use of concrete — Suggested employment of 

 high-tensile alloy steel.s — Possibility of stainless steel for bridges — ' Cement-gun ' 

 protection for steelwork — Problem of secondary stresses — Research work on 

 bridges — Need for information as to (a) ultimate resistance of girders, (6) precise 



