PUBLISHED WITH THE "HONGKONG DAILY PRESS" OF THE 26TH JULY, 1880.
N
DIAGRAM showing the movements of the Sismometrical Pendulum at the Manila Observatory during the EARTHQUAKE of the 18th July, 1880. (Reproduced from "El Comercio.")
PUBLISHED WITH THE "HONGKONG DAILY PRESS" OF THE 26TH JULY, 1880.
N
DIAGRAM showing the movements of the Sismometrical Pendulum at the Manila Observatory during the EARTHQUAKE of the 18th July, 1880. (Reproduced from "El Comercio.")