1. Examples of academic indexing services are Zentralblatt MATH, Chemical Abstracts and PubMed. 2. Details of this patent can be found in " Chemical Abstracts ". 3. These titles are indexed in Scopus, Chemical Abstracts , MEDLINE, EMBASE, PubsHub, etc. 4. The Chemical Abstracts Service registries have a running tally on their web site. 5. The Chemical Abstracts Service identifies tetrathionate by the CAS Number 15536-54-6. 6. The journal is abstracted in Zentralblatt MATH, Chemical Abstract , CAB Abstract and EBSCO Host. 7. In addition the Chemical Abstracts Service has devised a method to index chemical substances. 8. The books, including a collection of Chemical Abstracts dating to 1910, were bound for Kenya. 9. Under this former title the journal was indexed in Biological abstracts, Chemical abstracts , and GeoRef. 10. In 1965, the Chemical Abstracts Service overhauled its naming system and started discouraging excessively long names.