The practical purpose of judicial notice is to dispense with the necessity of taking proof to establish a well known or accepted fact or proposition. However, courts are not bound to take judicial notice of matters of fact. Their acceptance or rejection is dependent upon the nature and scope of the subject matter as it relates to the issues in any given case in conjunction with the overall justice applicable to the matter. A court will not take judicial notice of a fact where there is doubt or uncertainty regarding its acceptance or notoriety.
Jon C. Cleri, Judicial Notice of Scientific Facts, 15 Clev.-Marshall L. Rev. 140 (1966)