141 



Days ot 



the 

 mouth. 



North 

 lat, 



West 

 long. 



PHYSICAL OBSERVATIONS. 



July 7 



14° 20 



47° 3,8 



ly wind very brisk, sky slightly 

 dull ; sea very fine. 



Deluc's 



Hrs. Therm, hygrom. 



14 23*7° 64-5° (92 4° Sauss.) 



18 226 620 



20 233 61 



0 244 585 



4 24-2 56 0 (88 3° Sauss.) 



8 23-8 57*2 

 11 23-6 610 

 Cyanometer, atO h 30', the sky being 



without vapours, 32*5°. 

 Dip of the magnetic needle, 56*30°; 

 oscillations, 239 - } good observa- 

 tion (latitude 14° 15' and long. 

 48° 3'). 



8 



13 51 



49 43 



Temperature of the ocean, 24*7° ; 



temp, of ithe air, 23*6°. 

 Cyanometer only 17°, and yet the sky 



perfectly blue, without clouds or 



visible vapours : blue color of the 



ocean, 33o. 

 Fine breeze, sea beautiful, at 200 



leagues distance from French 



Guyana to the N.N.E. 



Deluc's 



Hr« TMiprm. Tivorom. 



lAlOt JL 11^-1 ill. uyglUAU. 



20 236° 58° 

 2 230 57 



4 23-0 56'2 (88-3° Sauss. > 

 7 228 590 

 12 22-3 62 2 (914° Sauss.) 



