Recent Monographs of Bell System Technical 

 Papers Not Pnblished in This Journal* 



Benxett, W. 



Telephone-System Applications of Recorded Machine Announce- 

 ments, Monograph 2213. 



BOGKKT, B. P. 



On the Band Width of Vowel Formants, ^Monograph 2167. 



Browx, W. L. 



N-Type Surface Conductivity on P-Type Germanium, Monograph 

 2173. 



Burton, J. A., Hull, G. W., Morin, F. J., and Severiens, J. C. 



Effects of Nickel and Copper Impurities on the Recombination of 

 Holes and Electrons in Germanium, Monograph 2193. 



Burton, J. A., Prim, R. C, Slighter, W. P., Kolb, E. D., and 

 Strutiiers, J. D. 



Distribution of Solute in Crystals Grown from the Melt, Monograph 

 2231. 



Coy, J. A. 



Heat Dissipation from Toll Transmission Equipment, Monograph 

 2214. 



Conavell, E. M., see Debye, P. P. 



* Copies of these monographs may be obtained on request to the Publication 

 Department, Bell Telephone Laboratories, Inc., 463 West Street, New York 14, 

 N. Y. The numbers of the monographs should be given in all requests. 



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