The American Chemical Society (ACS) is a scientific society based in the US. It has a large membership comprising those in chemistry, chemical engineering, and related fields. ACS publishes numerous journals and holds national conferences.
The ACS Style Guide by 
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Cryptids are animals whose existence is disputed.1 Nessie is one example.2 Bigfoot is another cryptid.3
References
(1) Anthropology and Cryptozoology: Exploring Encounters with Mysterious Creatures.; Hurn, S., Ed.; Multispecies Encounters; Routledge: New York, 2016.
(2) Cray, E. Loch Ness Monster. West. Folk. 1959, 18 (3), 258–259. https://doi.org/10.2307/1497725.
(3) Westrum, R. Sasquatch and Scientists: Reporting Scientific Anomalies. In Manlike Monsters on Trial: Early Records and Modern Evidence; Halpin, M. M., Ames, M. M., Eds.; University of British Columbia Press: Vancouver, BC, 1980; pp 27–36. https://doi.org/10.59962/9780774857857-006.
Title: Anthropology and Cryptozoology: Exploring Encounters with Mysterious Creatures
Editor: Samantha Hurn
Publisher: Routledge
Place of Publication: New York
Date of Publication: 2016
Chapter Title: Sasquatch and Scientists: Reporting Scientific Anomalies
Chapter Author: Ron Westrum
Book Title: Manlike Monsters on Trial: Early Records and Modern Evidence
Book Editors: Marjorie M. Halpin and Michael M. Ames
Publisher: University of British Columbia Press
Place of Publication: Vancouver, BC
Date of Publication: 1980
Pages: 27-36
Article Title: Loch Ness Monster
Author: Ed Cray
Journal Title: Western Folklore
Volume: 18
Issue: 3
Date: 1959
Pages: 258-259
