Abstracts of Bell System Technical Papers Not Appearing in the Bell System Technical Journal (01 January 1925)

J. O. S., R. S. I., Vol. 9, pp. 487-494, 1924. J. O. S., R. S. I., Vol. 9, pp. 479-485, 1924. 178 ABSTRACTS OF BELL SYSTEM TECHNICAL PAPERS 179 are unsymmetrical with respect to the zero of magnetic field is illustrated and the detection of such dissymmetry is discussed. A Classified List of Published Bibliographies in Physics, 1910-1922.3 KARL K . DARROW. This work, undertaken at the request of the National Research Council, represents an attempt to cope with the problem of providing a convenient and adequate bibliography of physics, not by actually writing a complete classified bibliography (which would fill a huge volume and require the prolonged labor of several men), but by listing the very numerous partial bibliographies under a detailed subject-classification. 

Many of the accounts of research published in scientific journals contain short histories of the previous work in the subjects which they treat, many others contain lists of references, and there are also a number of critical or uncritical reviews of particular fields with thorough documentations. The Classified List of Published Bibliographies refers to all of these which appeared in any of the familiar physical journals between 1910 and 1922 inclusively, and a number of books as well; it is believed that almost every article upon a physical subject, which has ever been cited or reviewed in another article, can be traced through the List. The system of classification, in which the field of physics is divided into seventy-five classes with numerous subdivisions, is much the most detailed and elaborate which has been made out for the science of physics in a score of years.