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At the instant we set sail, on the 19th of 

 November at noon, I took some altitudes of 

 the Moon, to determine the longitude of the 

 Morro. The difference of meridian between 

 Cumana and the town of Barcelona, where I 

 made a great number of astronomical observa- 

 tions in 1800, is 0° 34' 48". I have elsewhere 

 discussed this difference, upon which there were 

 many doubts at that period *. I found the dip 

 of the needle 42*20° : the intensity of the forces 

 was equal to 224 oscillations. * 



From the Morro of Barcelona, as far as Cape 

 Codera, the land becomes low, as it recedes 

 toward the south ; and it's soundings run out 

 into the sea to the distance of three miles. Be- 

 yond this we find the bottom at forty-five or 

 fifty fathoms. The temperature of the sea at it's 

 surface was 25*9°: but when we were passing 

 through the narrow channel, that separates the 



* See the Introduction to my Ast. Obs., vol. i, p. xxxix. 

 Mr. Espinosa has fixed on 34'. The pilots, who navigate 

 these coasts, reckon from Cumana to Barcelona twelve 

 leagues ; from Barcelona to ti*e Piritoo Islands six leagues 5 

 from these islands to Cape Unare six leagues ; from Cape 

 Unare to Cape Codera eighteen leagues. By Berthoud's 

 timekeeper I found the western point of the greatest of the 

 Piritoo Islands 14' 32", and Cape Codera 1° 24' 4", west of 

 the meridian of Nueva Barcelona. 



+ This result properly belongs to the first of August, 

 1800, and to the town of Nueva Barcelona (lat. 10° & 52") 

 where I was able to make the observation with greater care. 



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