Since the publication in 1950 of Vol. I, Spectra of Diatomic Molecules of Molecular Spectra and Molecular Structure, much progress has been made in the field. While there have been some important refinements in the theory of diatomic molecular spectra, most of the advances have been in the further exploration of individual spectra. Not only has the number of molecules about which some spectroscopic data are available been increased by a factor of 2 to 3, but also the spectroscopic information about the molecules known in 1950 has been vastly extended. This is due to the observation of new elec tronic states (about three times as many as known before), the enormous improvements in the accuracy of the constants of the states known in 1950, and the determination of higher order constants. In view of the increasing use of spectroscopic information on diatomic molecules in other fields of physics, in chemistry, and in astrophysics, it appeared desirable to prepare an up-to-date version of the table of molecular constants in the appendix of Vol. I. This updating proved to be far more time-consuming than originally anticipated, and it is only now, 10 years that we are able to present such a table, which, instead after its initiation, of the original 80 pages (plus 30 pages of bibliography), now fills a volume of 700 pages. In the interest of economy, and unlike the original version, the new table has been produced by photo-offset from the final manuscript."

This book presents the results of an international workshop on Modelling and Analysis of Arms Control Problems held in Spitzingsee near Munich in October 1985 under the joint sponsorship of NATO's Scientific Affairs Division and the Volkswagen Foundation. The idea for this workshop evolved in 1983, as a consequence of discussions in the annual Systems Science Seminar at the Computer Science Department of the Federal Armed Forces University ~1unich on the topic of Quantitative Assessment in Arms Control 1) * There was wide agreement among the contribu tors to that seminar and its participants that those efforts to assess the potential contributions of systems and decision sciences, as well as systems analysis and"mathematical modelling, to arms control issues should be ex panded and a forum should be provided for this activity. It was further agreed that such a forum should include political scientists and policy analysts working in the area of arms control.

This book presents a collection of contributions to a workshop on "Long-teY'fr/ Development of NATO's Conventional Forrward Defense" to which the GERMAN STRATEGY FORUM (DSF*" had invited some 50 systems analysts and defense experts of the United States, the United Kingdom, the Federal Republic of Germany and the SHAPE Technical Centre. Held in Bonn from 2 to 4 December 1984, this workshop was to provide a forum for the dis cussion, at a non-political expert level and in the light of available analysis results, of proposals for the improvement of NATO's conventional defense capabilities. In addition, it aimed at arriving at some recommenda tions as to which of these proposals deserve to be studied further and what methodological deficiencies must be alleviated and information gaps closed for an adequate assessment. The idea to organize this workshop has been discussed ever since 1980 with several defense systems analysts in the US and the UK who shared the opinion that, with a view to the immense global build-up of the Soviet threat on one hand and the stringency of defense resources in most NATO countries on the other, there is no reason that could permit us to dismiss any proposal promising improvement without careful study.

Am 25. Januar l : l24 tritt Profesi: lor A. Foppl in Munchcn in das 70. Lcbensjahr. Eine Anzahl fl('iIwr engeren Schuler haben flich deflhnJb zUi: lammengetan, um ihrem hochverehrten Lehrer ihre Gluckwunsche zu uberbringen 1111(1 ihm, zugl('ich im Nalllell ( pr T, tUtlende, die wahrend eiJ1Ps MellRchenalterR von ihm in der technischen Mechanik unterrichtet worden Kind, Dank zu sagen fur die Belehrung und An regung, die sie von ihm empfangen habeJl. I-lie hoffen in der augen blieklichen:: chweren Zpit, die sich nicht 7. um ]1'pieJ'n froher FeHk eignet, rlen richtigen Weg zur Darbringung ihrer Gluckwunsche darin gdundon 7. U haben, dass sie zu der Wissenschaft, deren Neubelebung und deren Ausbau die deutsche Ingenieurwelt dem Jubilar verdankt, aus Eigenem kleine Beitrage beisteuerten, die in diesem Buch gesammelt sind. Die zwei Sohne von A. Foppl und seine 7: woi i-{chwiegersohnp, die Hamtlich seine Schuler sind, habp 1 PR uhpl'llommen, die Herausgabe diPHl'r ]('cstgahp 7. U ])(, Horgen. Dip VprlagHbuehhn, ndlung . TuliliH R]lJ'ing\']' lmt Hich dankpnHwpJ't('J' \, ypiHl' mit (km Vprlag pinvPJ'Htanden eJ'kla, 't, . O. 1"