REFLECTIONS FROM CIRCULAR BENDS 349 



4. Electromagnetic Waves in a Bent Pipe of Rectangular Cross-Section, Quart. A pp. 



Math., 1, 328-333 (1944). See also a note on this paper by S. A. Schelkunoff in 

 the same journal 2, 171 (1944). 



5. Theory of Circular Bends in Rectangular Wave Guides, Rod. Lab. Report 43-45, 



June 24, 1943. An abstract under the number PB2869 appears in Bibl. Sci. and 

 Indus. RepL, Vol. 1, No. 7, p. 253. 



6. Electromagnetic Waves, D. Van Nostrand, New York (1943). 



7. Steady State Solutions of Transmission Line Equations, B. S. T. /., 20, 131-178 (1941). 



8. H. T. Davis, The Theory of Linear Operators, Principia Press (1936). 



9. Frazer, Duncan and Collar, Elementary Matrices, Camb. Univ. Press (1938). 

 10. K. Knopp, Theory and Application of Infinite Series, Blackie and Son (1928). 



