Development of Gravity Pendulums in the 19th CenturyNote 111 — DEVELOPMENT OF GRAVITY PENDULUMS IN THE 19th CENTURY (continued 2)Reading editionHeiskanen and Vening Meinesz, op. cit. (footnote 95), p. 74.◇Copy noteReturn to DEVELOPMENT OF GRAVITY PENDULUMS IN THE 19th CENTURY (continued 2)