203S at low temperatures.It is clear that the transport studies of thin films in the QSE region contains a whole wealth of intriguing physical problems, the problem of boundary conditions, the problem of various scattering mechanisms, and the problems associated with the feasible semimetal-semiconductor transition, etc.More accurate measurements in still better vacuum and quantitative-model computations are highly desirable. ACKNOWLEDGMENTS We are grateful to Dr. J. M. Dickey for her help in the computer calculation and to O. F. Kammerer for his expert technical assistance.

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Effects of interaction between two superconducting weak links (SWL) at F = 0 have been calculated using the Ginzburg-Landau theory. Variations of the critical current of one SWL affected by a dc current in a neighboring SWL are found in good qualitative agreement with a recent experiment. The current-phase relation of the combined system is computed for various separations between the two SWL'sj it is shown explicitly that the system behaves as a single SWL when the spacing between links is comparable to the coherence length.