143
Kwangse, Kwangtah, Kwongsang, Kyoto Maru, Laertes, Laisang, Lawhill (barque), Lennox, Liberia, Lightning, Locksun, Loongsang, Loosok, Lothian, Lowther Castle, Lyndhurst (sailing ship), Lyra, Macedonia, Machew, Malta, Manche, Mandaran Maru, Manila (N. G. Lloyd), Manila (P. & O. S. N. Co.), Marmora, Masan Maru, Mathilde, Mausang, Meefoo, Merapi, Michael Jebsen, Minnesota, Mongolia, Monteagle, Moyune, Namsang, Namur, Nanchang, Naniwa (H.I.J.M.S.), Nanshan, Nerite, Newton Hall, Nichibei Maru, Nico- media, Nijni Novgorod, Nikko Maru, Nile, Nippon, Nippon Maru, Nissin Maru, Nore, Nu- mantia, Nyanza, Oanfa, Oceana, Océanien, Onsang, Orange Branch, Orland, Paklat, Pakling, Palma, Pera, Persia, Peshawur, Petchaburi, Petronia, Pheumpenh. Phranang, Phu Yen. Pitsanulok, Polynésien, Pongtong. Poona, Powhatan, Priam, Prinz Eitel Friedrich, Prinzess Alice, Prinz Regent Luitpold, Prinz Sigismund, Prinz Waldemar, Progress, Pronto, Provi- dence, Quarta, Rajaburi, Rajah. Riojun Maru, River Clyde, Rubi, Salazie, Samsen. Sanda- kan, Sanuki Maru, Savonia, Segovia, Seiko Maru, Senegambia, Sexta, Seydlitz, Shansi, Shantung, Shaohshing, Shibetoro Maru, Shinano Maru, Shoshu Maru, Siberia, Sibirien, Signal, Silesia, Simongan, Singan, Sithonia, Skramstad, Slavonia, Socotra, Sontua. Soshu Maru, Stentor, Suisang, Sultan von Koeter, Suma Maru, Sunda, Sungkiang, Sydney, Syria, Tai- kosan Maru, Taishan, Taishun (Ch. I. M. C. C.), Taiwan, Taiyuan, Tamba Maru, Taming, Tamsui, Tango Maru. Tartar, Tawata Maru, Tean, Telena, Tenshin Maru, Tinhow, Tjibodas, Tjikini, Tjilatjap, Tjiliwong, Tjimahi, Tjipanas, Tonkin, Totomi Maru, Tourane, Tranque bar, Tremont, Triumph, Tsinan. Tsintau, Turukisan Maru, Van Outhoorn. Verona, Victoria, Waishing, Wakamatsu Maru, Wakasa Maru, Waterwitch (H.M.S.), West Virginia (U.S.S.), Wingsang, Wongkoi, Wosang, Wuhu, Yangmoo, Yawata Maru, Yesan Maru, Yetorofu Maru, Yiksang, Yuensang, Zafiro, Zoroaster.
12. The entry of observations made at sea in degree squares for the area between 92- South and 45° North Latitude, and between the longitude of Singapore and 180° East of Greenwich, has been continued by Miss DOBERCK and 324,954 in all have now been entered (Table I).
13. The typhoons of 1907 have been investigated and the tracks will be published and distributed as soon as possible.
14. Meteorological instruments forwarded by observers who regularly send their re- gisters to the Observatory are verified here free of cost. During the past year several hundred barometers and aneroids on board ship were compared with our standard.
15. In 1907 the number of transits observed was 460. The axis of the transit instru- ment was levelled 278 times and the azimuth and collimation errors were determined 16 times by aid of the meridian mark. The whole of these observations have been made by Mr. PLUMMER. No alterations have been made in any of the standard clocks during the year, but the Mean Time Clock which is in electrical connection with the Time Ball has been cleaned. The going of all the clocks has been fairly satisfactory.
16. The errors of the Time Ball are given in Table II. The ball is not dropped on Sundays nor on Government holidays. There were no failures during 1907. "On one occasion (Aug. 3) after a typhoon the line was in contact with others and the ball could not be dropped. After December 7 the ball was not dropped as the apparatus was in course of removal to Signal Hill. It was resumed at the new site on January 8th, 1908.
It was dropped successfully 281 times in 1907. The probable error was in January ± 0.16, in February 0. 18, in March ± 0. 15, in April 0. 12, in May0'. 16, in June 0 .14, in July 0. 16, in August 0.14, in September 05. 13, in October ± 0. 13, in November ± 03. 18 and in December ± 0. 09.
17. The cisterns of the barograph and standard barometers are placed 109 feet above Mean Sea Level. The bulbs of the thermometers are rotated 108 feet above Mean Sea Level and 4 feet above the grass. The Solar radiation thermometers are placed at the same height. The rim of the rain-gauge is 105 feet above Mean Sea Level and 21 inches above the ground.
18. The meteorological instruments in use are of the standard patterns adopted in British and Colonial Observatories. The most important part of the equipment is fully described in the annual report of the Director for 1884.
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