Earth Sciences

Contains citations, abstracts, links to full-text scientific journals, and citation analysis from the Chemical Abstracts Service database.

Includes topics such as: Air pollution, Environmental chemicals and pollutants, and Hazardous materials.

Substance and reaction data.

A database of around 50,000 reactions and around 3250 of the most frequently consulted reagents and is fully searchable by structure and substructure, reagent, reaction type, experimental conditions etc.

Open access to 583,000+ e-prints in Physics, Mathematics, Computer Science, Quantitative Biology, Quantitative Finance and Statistics.

The major database for biology.

The major database for agriculture topics.

Purpose is to provide global, collection-based occurrence and taxonomic data.

Contain the complete type descriptions for genus- and species-level taxa.

The largest collection of writings by and about Darwin ever published.

Brings 100 years of anthropological material online.

Good for finding sources in physical and other areas of anthropology.