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Elemens de Navigation

Author: N. C. Duval-Le-Roy
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Transactions of the International Astronomical Union Reports on Astronomy

Author: C. de Jager
Publisher: Springer Science & Business Media
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This volume contains the fifteenth tri-annual reports of the Presidents of the forty Commissions of the International Astronomical Union; it refers to the progress in our discipline during the three years 1970, 1971 and 1972. As compared to earlier volumes a gradual change in character is unmistakable. The ever increasing flow of publications, combined with the obvious necessity to keep the Reports at a reasonable size and price level has gradually forced the Commission Presidents to be more selective than before in drafting their Reports. I have certainly stimulated them into that direction - in order that Reports like these be valuable and lasting, it seems imperative that the individual contributions have the character of a critical overall review, where a fairly complete summary is given of the major develop ments and discoveries of the past three years, and in which the broad developments and new trends be clearly outlined, while at the same time essential problems for future research are identified. With respect to the latter item I have suggested the Commission Presidents to add to their reports a brief section on scientific priorities for future research in the field of their Commissions. In order to save space I have suggested to Commission Presidents that references to published papers are given on the basis of their number in the published issues of Astronomy and Astrophysics Abstracts. For instance, the indication (06. 078. 019) or (AAA 06. 078.


Ultraviolet Stellar Spectra and Related Ground Based Observations

Author: K. Houziaux
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Two years ago, just before the Prague meeting of the International Astronomical Union, Armin Deutsch made the bold suggestion that the space spectroscopists hold a joint symposium with the ground-based observers. At that time the rocket observa tions of stellar spectra seemed too meagre to make such a meeting worthwhile, but we proceeded in the hope that there would be significant new results available by 1969. IAU Commissions 29 and 44, on Stellar Spectra and Observations from Outside the Terrestrial Atmosphere respectively, agreed to sponsor the symposium so that the organization was given to the Joint Working Group of these commissions. Conse quently, the Organizing Committee, which met first in Prague, consisted of A. Deutsch, M.W. Feast, L. Houziaux, V.G. Kurt, N.G. Roman, J. Sahade, A.B. Underhill, and R. Wilson, with myself as Chairman. Later COSP AR was invited to join in spon soring the symposium and T. Chubb was added as their representative. We were specially pleased when C. de Jager invited us to the Netherlands and offered the services of the Utrecht Observatory for the local organization. He suggested we hold the meeting at the new Lunteren Conference Centre located in a wooded area some 35 km east of Utrecht. The modern facilities of the Centre and the hospi tality of its staff contributed much to the enjoyment of our four days there.


La porte du ciel

Author: Pascal BECU
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La porte du ciel est a la fois un livre psychologique, philosophique et un roman initiatique. Dans cet ouvrage, l'auteur nous invite a explorer le monde obscur de la psyche, sans tabou ni a priori. A travers les reflexions et decouvertes d'un jeune psychiatre prenomme Paul dans le recit, l'auteur nous entraine sur les pas d'un vieil oncle disparu, ayant laisse pour seul heritage un vieux chalet sans age, perdu au milieu des montagnes, mais surtout des notes manuscrites, que Paul decouvrira au debut du recit, et qui le conduiront a franchir la porte du ciel, au terme d'une analyse reflexive a laquelle le lecteur se trouvera associee de par la composition meme de l'ouvrage. A travers la confrontation originale entre Paul, jeune psychiatre forme a l'ecole scientifique moderne, et un vieil oncle petri de sagesse et de culture ancienne, l'auteur nous invite donc a le suivre sur un chemin de connaissance, largement documente, ou chacun pourra tracer son propre sillon.


Astronomische Nachrichten

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Advances in Electronics and Electron Physics

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Advances in Electronics and Electron Physics


Atelier de travail PHESAT95 sur l observation des ph nom nes des satellites de Saturne en 1995

Author: Jean-Eudes Arlot
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The Royal Dictionary Abridged in Two Parts

Author: Abel Boyer
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The Royal Dictionary French and English and English and French

Author: Abel Boyer
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The Royal Dictionary Abridged I French and English II English and French

Author: Abel Boyer
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