I. Inflation Theory -- Fundamental Arguments for Inflation -- Predictions of Inflation -- Classicality of Density Perturbations in the Early Universe -- The Influence of Non-Linear Density Fluctuations on the Microwave Sky -- Quantum Cosmology and the Cosmological Constant -- Lessons from Inflation and Cold Dark Matter -- The Topology of Galaxy Clustering -- Can Non-Gaussian Fluctuations for Structure Formation Arise from Inflation -- Non-Baryonic Dark Matter -- Are Galactic Halos Made of Brown Dwarfs or Black Holes -- II. Cosmological Timescale Test -- Ages of Globular Clusters -- Globular Cluster Ages and Cosmology -- The Local Distance Scale: How Reliable Is It -- Distances to Virgo and Beyond -- The Luminosity-Line-Width Relations and the Value of Ho -- Observational Status of HO -- Calibrating Cepheid Sequences in Nearby Galaxies -- New D-? Results for Coma Ellipticals -- Novae and the Distance Scale -- A High Resolution, Ground Based Observation of a Virgo Galaxy -- Globular Clusters as Extragalactic Distance Indicators -- III. High Redshift Tests of ?o -- High-Redshift Tests of ? -- Cosmology with Galaxies at High Redshifts -- Prospects for Measuring the Deceleration Parameter -- Aligned Radio Galaxies -- K Band Galaxy Counts and the Cosmological Geometry -- Selection Effects in Redshift Surveys -- An Inflationary Alternative to the Big-Bang -- IV. Galaxy Clustering, ?o and the Primordial Spectrum -- Dynamical Estimates of ?o from Galaxy Clustering -- ROSAT Observations of Clusters of Galaxies -- A Deep ROSAT Observation at High Galactic Latitude -- Large Scale Structure and Inflation -- The Structure of the Universe on Large Scales -- Testing the Zeldovich Spectrum -- ? on the Scale of 3Mm/s -- Tests of Inflation Using the QDOT Redshift Survey -- Testing Inflation with Peculiar Velocities -- The Invisible Cosmological Constant -- Support for Inflation from the Great Attractor -- The Angular Large Scale Structure -- Is There Any Observational Evidence for Non- Gaussian Primordial Density Fluctuations -- V. Microwave Background Anisotropy -- COBE DMR Observations of CMB Anisotropy -- Observations of Microwave Background Anisotropy at Tenerife and Cambridge -- Foreground Effects and the Search for Fluctuations in the CMB Radiation -- Microwave Background Anisotropics and Large Scale Structure in the Universe -- Discovery of the Small Scale Sky Anisotropy at 2.7cm: Radio Sources or Relic Emission -- Balloon-Borne Observations of CMB Anisotropics at Intermediate Angular Scales, at Sub-MM and MM Wavelengths -- VI. Poster Papers -- The Durham/UKST Galaxy Redshift Survey -- Time Evolution of Lensed Image Separations -- Deep Galactic Surveys as Probes of the Large Scale Structure of the Universe -- Intergalactic Absorption in the Spectra of High-Redshift QSOs -- A Complete Quasar Sample at Intermediate Redshift -- Radio-Luminosity Dependence of the IR-Radio Alignment Effect in High-z Radio Galaxies -- Density and Peculiar Velocity Fields in the Region of Dressler's Supergalactic Plane Survey -- Scale Invariance Induced by Non-linear Growth of Density Fluctuations -- The Power Spectrum of Galaxy Clustering -- Higher Moments of the IRAS Galaxy Distribution -- Collapse of a Protogalactic Cloud -- Index of Authors.