This book is the third volume belonging to the series of proceedings of the Moriond Astrophysics meetings. I t follows "Cosmology and particles" publi shed in 1981 by les Editions Frontieres and "The birth of the Universe" whioh appeared in 1982 thanks to the same publisher. This workshop took plaoe on llBroh 1983 at La Plagne and as in 1981 and 1982 took advantage of the simultaneous presence of the particle physicists and the astrophysicists. As said in the title of the book the partioipa nts have presented their most recent views on the evolution of large structures and galaxies and the relevance of these questions on particle physics and cosmology. Among the llBny developments which are at the origin of the thirty five papers gathered here, three main themes have been touched on by several speakers during the workshop. They are (i) the influence of the mass of neutrinos and other "inos" predicted by the "Supersymmetry" theories, which are the more likely candidates for the hidden mass of the Universe, (ii) the dynamics of triaxial galaxies and (iii) the possible occurence of pregalactic stars with a debate on their hypothetioal nucleosynthetic role. Miny different views h3. ve been presented on these three topics (and many others) which prove the liveness of the physical cosmology. For the editor it has been quite difficult to find a reasonable and logical order to arrange the oontent of the book.

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I - Cosmology of the very early universe and fundamental interactions.- Primordial Inflation and Super cosmology.- Remarks on the quark-hadron transition in the early Universe.- Mass bounds on a dileptonic system from cosmoLogy.- Cosmological constant and Friedmann Universes.- II - Large structures: Pancakes - Clusters of galaxies.- Dark matter and shocked pancakes.- Pancakes, hot gas and microwave distortions.- Spectrum of the cosmic background radiation.- Is the Universe made of massive neutrinos?.- The pregalactic Universe and the formation of large scale structure.- Large soa I e inhomogeneities and galaxy sta t istios.- Clusters of galaxies as indioators of galaxy origin.- III - Massive halos.- Are massive halos baryonic?.- What is the dark matter? Implications for galaxy formation and particle physics.- Dark matter, galaxies and globular clusters.- CosmoLogical constraints on neutrinos and other "inos" and the "missing light" problem.- Blaok halos and dwarf galaxies.- Mass-to-light ratios of spiral galaxies.- IV - Pregalactic stars and early nucleosynthesis.- Pregalaotio aotivity, galaxy formation and hidden mass.- On the nature of the first stars.- On the forma tion of population II stars via thermal instability.- Possible synthesis of deuterium and lithium by pregaLactic massive stars.- Deuterium and lithium from population III remnants.- Chemioal evolution of the light elements and the Big Bang nuoleosynthesis.- V - Structure and dynamical evolution of galaxies.- Struoture and evolution of triaxial galaxies.- Are N-body potentials of Eddington form ?.- Secular dynamical evolution of galaxies.- A galaxy distribution funotion ?.- The thickness of galactic disks.- Heating of stellar disks by massive objects.- The origin of rotation in galaxiesand clusters.- Rotation, dissipation and elliptioal galaxies.- VI - Chemical evolution of galaxies.- Nucleosynthesis constraints on early galactic evolution.- Stocnastic star formation in dwarf irregular galaxies.- The oxygen anomaly in metal poor stars.- "Liners" and Abundance in galactic nuclei.- Author index.