Neugebauer Microform Index of the Exact Sciences

The IRCPS has prepared and now offers a digital version of the 26,002 file-cards prepared over 60 years by Otto Neugebauer (1899–1990), the renowned historian of the exact sciences. On these cards, Neugebauer wrote by hand the very detailed and meticulous notes that he used for research and publication throughout his career. These cards fall into two types. The first are subject-cards which divide the history of the exact sciences by time period, culture (Classical Greek and Roman, Babylonian, Egyptian, Islamic, Judaic, Byzantine, European) and topic (the various branches of the mathematical sciences such as arithmetic, geometry, trigonometry, astronomy; scientific instruments, calendars, lexica, and so on). These subject-cards are keyed to the second type of cards, the bibliographical cards which record the literature and documents that Neugebauer consulted.

Please note that the button below will take you to a Dropbox download link. Download the compressed .zip file and open it on your computer. A User Guide for the Neugebauer index (PDF) is also included. The Guide may be read and printed using Acrobat Reader (version 8.0 or later). This software may be downloaded free of charge from

Aestimatio (old Series) Archive


Aestimatio (old series) was launched in 2004 by the Institute for Research in Classical Philosophy and Science. It is an Open Access journal, which provides critical, timely assessments of books published in the history of what was called science from antiquity up to the early modern period.

See Aestimatio new series here.



This peer-reviewed publication was devoted to the history of premodern science understood as a subject that includes not only what was variously called science from antiquity up to the early modern period in cultures ranging from Spain to India, and from Africa to northern Europe, but also the diverse contexts in which this science figured at a given time. It aimed to make fundamental texts in the history of science accessible to the modern reader both online and in print, primarily (but not exclusively) by means of editions, translations, and interpretations that satisfy the requirements of specialists but still address the needs of non-specialists and general readers. Articles were published in English or French, and included numerous ancient languages.



Sources and Studies in the History of Science