REPOKT OX THE METEOROLOGY OF TOKIO 



for the Year 2539 (1879) 

 T. C. MENDENHALL. 



THE STATION AND INSTRUMENTS. 



The Meteorological Station, at which the following observations were made, is 

 in the West wing of the small observatory belonging to the University of Tokio 

 and is situated in Hongo Mcito-Fnjimicho, Tokio. The building was completed 

 in the latter part of the year 2538 (1S78) and the task of arranging the instru- 

 ments and undertaking a regular series of meteorological observations was assigned 

 to me at that time. The instruments were such as happened to be already in 

 the possession of the University and their arrangement was completed some- 

 time before the first of January 2539 (1879), the Directors of the University at 

 the same time appointing Mr. Wuyeno as observer. The observations taken 

 before that date, however, were in some degree irregular and the present report 

 includes only those made during the year 2539 (1879). They have been 

 continuous throughout the entire year, with a few exceptions in the case of two 

 or three of the instruments which suffered from accidents preventing their use 

 during a short time. 



The instruments are, at present, all mounted in the small room constituting the 

 second story of the West wing of the observatory and on the roof of the same. The 

 approximate latitude of the station is 35° 43' and the longitude is approximately 

 139 3 46'. The height of the stone foundation of the building above the 

 Sea level is 66.7 feet. The situation of the station is, all things considered, a 

 very desirable one. It occupies an elevated position and is in a clear open 

 space so that there can be no local disturbances of wind, rain, &c. 



Concerning its instrumental equipment, it may be said to be the simplest 

 which is compatible with the attempt to record the greater fluctuations in the 

 principal meteorological elements. Although much information can be gained, 

 and I believe has been, by a careful and continuous use of the few instruments 

 now mounted yet there are several important additions which it would seem 

 desirable to make as soon as possible, to which, however, a more extended 

 reference will be found in a subsequent portion of this report. 



