2. Mallet, Robert.
On the Dynamics of Earthquakes ; being an Attempt to reduce their observed Phenomena to the known Laws of Wave Motion in Solids and Fluids. [Read 9th February, 1846] AND: On the Objects, Construction, and Use of certain new Instruments for Self-registration of the Passage of Earthquake Shocks. [Read June 22,1846].
First Edition of both original papers. [Dublin], Royal Irish Academy, 1846. Quarto. 63 pages with 2 illustrations in the text (wood-engravings) and 3 plates: Plate I – Map of Earthquake Cotidal Lines (coloured) / Plate II – [″Seismic waves” and illustrations of a seaquake] / Plate III – [Seaquake and development of a Tsunami Wave] Modern Softcover. Very good condition with only minor signs of external wear. The very scarce original first edition of Mallet’s “groundbreaking” discovery. [From “The Transactions of the Royal Irish Academy, Volume XXI, Part I].