Conjectura physica circa propagationem soni ac luminis una cum aliis dissertationibus analyticis De numeris amicabilibus De natura aequationum, ac De rectificatione ellipsis.
Physical conjectures on the propogation of sound and light with other dissertations: on amicable numbers, on natural equations, and on the rectification of ellipses
E121 is one of an unusual group of Eneström numbers. It refers to a collection of articles which were published together (in this case E151, E152, E153, and E154), but were written on different topics. Usually referred to as Opuscula Varii Argumenti, Volume 2, this work is part of a three-volume series, the other two parts being E80 (Volume 1) and E156 (Volume 3).
Original Source Citation
Nova acta eruditorum, Volume 1756, pp. 439-446.
Opera Omnia Citation
Series , Volume , pp.-.