350 



HYDROGRAPHICAL SURVEYING [chap. xiv. 



is given to enable it to be valued and compared with others 

 between the same places. The form appended is that now 

 employed. 



>,o. 24. 



Return of Meridian Distance, H.M.S. 



, 1874. 



Captain. 



From Seychelles, To Zanzibar. 



Observation spot, Ssychelles — Hondouls Jetty, Mah6 



Lat. 4 37 15 R. 

 „ 6 09 45 S. 



„ „ Zanzibar — Old British Consulate Garden 



Eates used — Mean rates of departure and arrival. 



Error at Seychelles on Jan. 13th by Eq. Alts. 



» » j> » » lotn „ „ ,, 



„ „ Zanzibar „ Feb. 1st „ „ „ 



f)t-h 



Duration of passage, Jan. 18th, 6 p.m. to Jan. 30th, 4 p.m. 

 Epochs for calculating accumulated rate, .Jan. 15^, Feb. 5th = 20 '545 days. 



By Observer I. 



Ra'e of 

 Departure. 



-1 

 -1 

 -1 



+ 2 

 _2 

 -4 

 + 4 



280 

 158 

 888 

 212 

 068 

 •908 

 ■832 

 •668 



Rate of 

 Arrival. 



Movi iian 

 Distance. 



s. h. m. s. 



-1-544 I 05 04-54 



— 5-261 None calculated 



Remarks. 



Sea smooth dur- 

 ing passare. 



Steaming 7 days. 



Sailing 5 days. 



Head generally 

 West. 



C. H. & F. going 

 irregularly by 

 intercompari- 

 soiis. 



Chronometers rejected C. F. & H. Number used, 5. 



h. m. 8. 

 Mean Meridian Distance by Observer 1 .. 1 05 04-59 



.. ,, „ „ „ w ,. 0o-4o 



Q 



J» J> >J 5> » '-' 



)> >» » » » ^ 



Final Mean Meridian distance by arithmetical mean 

 „ „ „ „ „ values assigned 



h. m. 8. 



1 05 05-0 W. 



