ARTICLES BY BELL SYSTEM AUTHORS 475 



nology.* M. J. Kelly.^ Roy. Soc. Lond., Proc, A, v. 203, pp. 287-301, Oct. 

 10, 1950. 



Abstract — To keep pace with the evolution of its research laboratory and 

 take advantage of the opportunities accruing from the adoption of the 

 scientist and his methods, the engineering organization of industry has 

 undergone major change. Its relatively simple operation, in the last century, 

 of transforming the inventor's model into a design for manufacture, per- 

 formed largely by empirical methods, has now expanded into many succes- 

 sive interlaced operations. Each, as it has matured, employs more of the 

 scientific method and of fundamental analysis in the solution of its problems. 



There has been so much emphasis on industrial research and mass-produc- 

 tion methods in my country, that even our well-informed public is not 

 sufficiently aware of the necessary and most important chain of events that 

 lies between the initial step of basic research and the terminal operation of 

 manufacture. In order to stress the continuity of procedures from research 

 to engineering of product into manufacture and to emphasize their real unity, 

 I speak of them as the single entity 'organized creative technology'. I am 

 using the Bell Telephone Laboratories and its operations as an exemplifica- 

 tion of this unity. 



Pseudo Closed Trajectories in the Family of Trajectories Defined by a System 

 of Differential Equations. L. A. MacColl.^ Quart. Applied Math., v. 8, pp. 

 255-263, Oct., 1950. 



Abstract — ^This paper is concerned with certain simple closed curves, here 

 called pseudo closed trajectories, which play an important part in deter- 

 mining the topological properties of the family of trajectories (or char- 

 acteristics) defined by a system of differential equations of the form 



Some of these curves are considered in a rather incidental way in the writings 

 of Poincare. However, the full concept of pseudo closed trajectories does not 

 seem to have been discussed explicitly heretofore. 



Teletype's Share in Bell System Operations. P. H. Miele.^ Bell Tel. Mag., 

 V. 29, pp. 180-190, Autumn, 1950. 



Abstract — Western Electric makes equipment for transmission of the 

 spoken word; Teletype, its subsidiary, makes equipment for transmission 

 of the written word. 



* A reprint of this article may be obtained on request to the editor of the B. S. T, J. 

 IB. T.L. 

 2W. E. Co. 



