34 -A-rt. 7.— S. Hirayama. 



KOBE. 



Long. 135° 11' E., Lat. 34° 41' N. 



This is a temporary observatory established for the harbour 

 work. The instrument used is different from those used at the 

 tide observatories of the Land Survey Department, as has been 

 already stated. 



The series of marigrams obtained in tlie years 1900, 1901, 

 1902, 1903, 1904, and 1906 have been completely reduced. 



The highest high-water recorded here was 2.539, and occurred 

 on Sept. 7, 1902, and the lowest low-water was 0.142, on Jan. 

 25, 1902; thus the extreme range of the tides in this period was 

 2.397 metres. 



The height of the mean sea- level, referred to the zero-point 

 of the instrument, is obtained from each series of marigrams as 

 follows : — 



m 



1900 1.409 



1901 1.402 



1902 1.415 



1903 1.4G3 



1904 1.490 



190G 1.430 



