131 



JOURNAL 



OF A 



VOYAGE FROM THE COASTS OF SPAIN 



TO THOSE OF 



SOUTH AMERICA, 



OR FROM 



CO RUN N A TO CUMANA. 



l[The longitude was found by a time-keeper of 

 Lewis Berthoud, No. 27. The temperature of 

 the ocean indicated is that of the surface of the 

 water. The cyanometrical observations were 

 made at the zenith. The thermometer exposed 

 to the air was placed to the windward, and in 

 the shade. W hen an observation of the Sun 

 at the meridian could not be obtained, Douwes 

 method of double altitudes was employed. The 

 latitudes and longitudes are given for noonS\ 



Days of 



the 

 month. 



North 

 latitude . 



West 

 long. 



PHYSICAL OBSERVATIONS. 



1799 

 June 5 



43° 28' 



10° 45' 



Departure from the port of Corunna. 



Temperature of the ocean, 15*4° cen- 

 tesimal : air 10*2°. 



Hygrometer, whalebone, 44°, or 80*4° 

 of Saussure's hair hygrometer. 



