The Immortalist's Notebook

The Immortalist's Notebook was a short-lived newsletter of the Cryonics Society of New York. It was issued in the closing months of CSNY's main newsletter, Immortality (originally Cryonics Reports), in a four-page format. The Notebook lasted for four monthly issues, January through April, 1971. It was to be "an informal publication, which will provide information about organizational efforts aimed at the attainment of immortality, important events taking place as the result of these efforts, and the research findings in the Life Extension Sciences. It will also include fragmented material that is best suited to this format."

The Notebook appears to have been a replacement and expansion of "Cryo News Capsules", a feature of the main newsletter which had persisted for years, but finally was dropped with the 1971 issues. In addition to brief news notes about cryonics, the Notebook covered other life extension matters, such as anti-aging research.