II 



DHTF.RMIX ATIOX 



Tiir, FORCF, or c;ra\'it\' 



ON THi: 

 Sl'MMII ()V M'jIXOYAMA. 



TIij I'Xi.i'ditio!) to tlic (Jiiiiiinit «f Fnjii;(>yain:i for thi- j>tirjH.sc nl niakinj: 

 jK-mhiluin cxperimonts at that pnjnt was underfakL-n diirinj; tlie first |iftrt i>f tin- 

 month of August 1880. Tlie writer was fortunat^^ in «.vuring tlic intcnvt und 

 co-operation "f W. S. Chaplin Es«) Trofi-sstir of Civil Enginei-ring iu tin- 

 University, «ho »ccoiniKinivd t!ie l^iily to tin- sutiniiit of the mountain and 

 rendered great affistanc-e throughout taking hjuviul ehurge of the deteiuiinution 

 i)f the rate of the chronoinet4.T In addition to I'rofeasur Chuplin and the 

 writer, the jiarty consisted of four s|>eei:vl htudenti< in physic« in the L'niversil), 

 Jlessrs. Tanakadatc, Tanaka. Fujisjiwa and Kiunainoto and Mr Vaumda, 

 »Rxistant in the Department of IMiysii-s Mr. Nol.iitani of the MelcoroiiigiMd 

 Oliservatory was with the {«rty a |>ortion of thr lime a« were also, Mii*rh Wad.» 

 and Niikannira from tlic Surveying Ilep.irtmeul. 



To ^Ie.«8rs. Tanakadate and Tanak.i wil« iLst^igned the tiu<k uf iiuiking tin- 

 pendulum vibrations as they IükI, in making the Tokio detenniniition, aujuireil 

 a knowledge of all of tlie details of the work. Mr. Fuji^iwa determined the 

 vibration jieriods of two magneti» which he had prtnioutdy vibrate»! in tiie ph^hi- 

 cal laboratory at Tokio and he also assisted ^Ir Kuiiuiinoto in k<-<|'in'.' ii|> tli • 

 meteorological obaervations. 



Jlr. Nakamura also carried on a series of meteorological obnerrations during 

 ht entire stay upon the summit which were accomfianied by (•imullant'ouii 



