OF I. A PERO'JSE. 



6i 



r.o doLibtj from fornc ipa:ii;nctic nttraflion : be- 

 iidcs, \vc bnd alrcaJy found indications of for- 

 ruf^inous fubllances at a litile. dilrance from th3.t 

 fpot. It is remarkable, tliit at the obfervatory 

 of the Kfpcraiicc, v, hicli v,as difTant ancut (ix 

 huncb-od meters from thai of tlie Recherche, 

 the vari ition of the needle was 8"" eafl. It was 

 afccrtained that this difference did not proceed 

 from the compaiTes made ufe of; for it v/as the 

 fan-se, after havin-.^ fuccellively carried the fame 

 compalTes to the rwo obfervatories. 



The dip of the needle was 72 at the obfer- 

 vatory of the Reciicrchc, and 71? at that of the 

 Efperance. 



During our ftay in Rocky Bay, the winds va- 

 ried from north-wcfl: to fouth-weft, and often 

 blew in heavy fqualls. The weather was fcldora 

 free from clouds, and there fell even a little 

 rain. 



Tlie tides were perceptible only once in the 

 twenty-four hours. As the winds had much 

 infiuencc en ih .ri\, we could not detcrrniriC with 

 precihon the tin'u of high water i this bay -m 

 the full and ch-m^j-e of the moon. Ti;e rcuell 



O 



perpendicLilar rife of the tide was only {i:.teen 

 dcciuiercrs. 



l^urin:"" our friv nt thi''anchora'Te, cur ;^amen 

 Mad loii; nu:c;i o: ::";e:r :ir.:c:ur lor nii.uv;;; lor 

 till:, laborious cxcrJiib, wlii^h ihc}' chiefl}" per- 



fbriujd 



