

Observations upon the Dip of the Magnetic Needle. 87 



No. 3, .• . . 



No. 2, . 



Mean, . . 



Manilla, top of Messrs. Sturgiss <fc 



31° 18'-7 

 30° 56'-l 



31°07'-4 



Wilkes 



ron— April 12th, 1842. 

 No. 3, 



No. 2, 

 Mean, 



16° 20'-5 

 16° 21'-1 



16° 20'. 8 



Canton, China, mean of numerous observations upon the top 

 of different factories with Nos. 2 and 3, from the 14th to the 

 16th of May, 1842, 32° 26'-2 



Hongkong, near the Queen's Street Baptist Mission Chapel, 

 Sept. 21st, 1842. 



No. 3, 



No. 2, 



Mean, 



/ 



30° 58'- 8 

 31° 00'- 6 



30° 59'- 7 





Wanhmg, Canton River, mean of observations with Nos. 2 

 and 3, in different parts of the island — now occupied by the new 

 fortifications, 31°49'-4 



Amoy, China, (island of Koolongsoo,) gardens in the rear of 



we house occupied by Rev. Mr. Abeel of the American mission. 

 No. 2, 



No. 3, 



Mea n, 



Honolulu, Oahu, Dr. Wood's yard, formerly the U. 

 a{ e, and one of the stations occupied by Capt. Wilkes. 



J uty 19th, No. 2, .... 

 I " 20th, No. 2, 



35° 28' 

 35° 13' 



35° 20'-5 



No. 3, 



Mean , 



Hilo, Byrot 



2 H 1S43. 

 No. 2, 

 No. 3, 



Mean, 

 Preferred, 



42° 14' 

 41° 51' 

 42° 18' 



42° 08' -1 



Mr 



41° 04' -5 

 41° 23' 2 



41° 13'-8 

 41° 10' 



