Excerpt from Report of the Director of the Royal Observatory, Hongkong, for the Year 1923 The grounds were kept in order by the Botanical and Forestry Department with the assistance oi the Observatory coolies. In October two rows of iron shelves were fixed round the wall of the Old time-hall Tower to take. The overflow of records from the Observatory. The underground room for the seismograph and clocks was completed in the month of May. It consists of a double room with an air space of 2 feet between the inner and outer walls and roofs. The floor is 17 feet below the level of the ground. The inner room is 20 feet square and 10 feet 9 inches high at centre, with 0 inch brick walls. The outer walls are of concrete, 2 feet 43 inches thick at the base tapering to 12 inches thick at the top. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.