typhoons, if there were any, with th eir approximate tracks, a note of all the earthquakes felt in the Philippines during the month with a discussion of the most important ones, and a complete list of the records of the microseismographic instruments. AIaHES The annual report shall contain the observations made at the central and branch stations, or such portions thereof as may be valuable, together with such other meteorological data and scientific discussion as the Director may deem advisable. AICTcE With the approval of the Department head, the Director of the Weather Bureau shall from time to time cause to be prepared such reports, charts, and maps as the service shall require. When deemed desirable such material may be printed and published, subject  to the same approval. [1833-1.] SECTION  966 . Daily Publication of Standard Time-Rating of Chronometers . — The Director shall cause standard time to be furnished daily to the city of Manila and to all branch stations in telegraphic communication with the central station. He shall further  provide for the free rating of all chronometers brought to the Manila Observatory for this purpose. [131-14.] SECTION  967 . Stations of Weather Bureau . — The Manila Observatory shall be the central station of the Bureau. There shall also be maintained throughout the Philippine Islands at points to be determined by the Director of the Weather Bureau, with the approv al of the Department head, such number of subordinate meteorological stations as may from time to time be provided for under the current appropriations. These stations shall be of four classes, namely: first-class stations, second-class stations, third-cla ss stations, and rain stations. [Comp., 1178.] SECTION  968 . Meteorological Records to be Kept at Different Stations — Weather Reports — At all subordinate stations such meteorological observations shall be taken and records kept as shall be prescribed in the regulations of the Weather Bureau; and repo rts of the same shall be forwarded to the central station at such intervals and in such manner as the Director of said Bureau shall require. [1833-1.] cCTESa Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011 292