REPORT OX THE METEOROLOGY OF TOKIO. 



For the year 25-i:0 (18S0) 



T. C. MENDEXIIALL. 



FRELTMINARY. 



In the report for the year 2539 (1879) the first of this serie?, the location 

 of the observatory, in which the observations have been made, is given and the 

 various instruments used are enumerated and described. It is, therefore, only 

 necessary to state that no chanp;o lias taken jilace in regard to either of these. 

 As stated in that report, while the location of the observatory was satisfactory, 

 the instrumental equipment was by no means so and it was at that time confi- 

 dently expected that before the end of the year several important and much 

 needed additions would be made. Unforseen difficulties have prevented this, 

 liowever, and the observations of the year have been made with the instruments 

 previously in use. Several very desirable additions and improvements were 

 recommended iu the conclusion of the report of last year and it is to be regretted 

 that, up to the present time, it has not been found possible to make tlieni. It 

 is now proposed, however, to equip the observatory, during the next year, with 

 an entirely new and complete set of apparatus, such as is in use in the first class 

 stations of the Signal Service of the United States. Such an addition to tlie 

 instruments already in use would add greatly to the value of the observations 

 and it is sincerely hoped that uotliing may interfere with its accomiilislnuent. 



Puring the year several changes have been made in the observers employed. 

 Wlicn the hourly observations began in March, Mr Nobutani was ailded to the 

 force and he lias remained permanently attached to the observatory, taking the 

 l)kce of Jlr Wuyeiio. BIr Namba continued until August when, unfoitunately 

 for the interetits of the observatory, he was ordered to Fiance by the Education- 

 al Department, for the purpose of continuing his studies in Paris. Mr Namba 

 was a careful and trustworthy observer and it is to be regretted that the obser- 

 vatory was 60 soon deprived of his services In his place Mr Kiriyama was 

 appointed regularly ami Mr Tsubota has also been employed during the months 

 in which hourly observations have been maintained. Although, considering the 

 interests of all parties concerned, the changes thus far made have been, on the 



