Here you will find
CAB Abstracts 1910 - 1972 1
CAB Abstracts 1973 - 1989 1
CAS Source Index : CASSI 1
Centers for Disease Control and Prevention - Data and statistics (USA.gov) 1
CERN Document Server 1
CGSC, The Coli Genetic Stock Center 1
Chemical Kinetics and Photochemical Data for Use in Atmospheric Studies 1
ChemID plus 1
ChemSpider 1
ChemSynthesis 1
CIAO - Columbia International Affairs Online 1
CiteSeerX 1
Climate Data Centre - CDC : 1
ClinicalTrials.gov 1
Cochrane Central Register of Controlled Trials (CENTRAL) 1
CODATA - Fundamental Physical Constants 1
Cold Spring Harbor Protocols 1
Colibri 1
Collection of Computer Science Bibliographies 1
COMAR 1
Computer Index of Nuclear Reaction Data 1
CORDIS 1
Country Analysis Briefs 1
CRC handbook of chemistry and physics 1
Crystallography Open Database - COD 1
Current Contents Connect 1