XXlU- 



RESULTS OF THE MEASUREMENT OF A BASE LINE BY SOUND W^™ ° AFE FRI ° LI GHT-HOUSE AND ENXADOS ISLAND. 



POSITION OF VESMiI.5. 



From Light-house to Flying-Fish's 1st, 

 " Flying-Fish's 1st to Sea-Gull's 1st, 

 " Sea-Gull's 1st to Peacock's 2d, 

 " Peacock's 2d to Flying-Fish's 2d, 

 " Flying-Fish's 2d to Sea-Gull's 2d, 

 " Sea-Gull's 2d to Peacock's 3d, 

 " Peacock's 3d to Flying-Fish's 3d, 

 " Flying-Fish's 3d to Sea-Gull's 3d, 

 " Sea-Gull's 3d to Peacock's 4th, 

 " Peacock's 4th to Flying-Fish's 4th, 

 " Flying-Fish's 4th to Sea-Gull's 4th, 

 " Sea-Gull's 4th to Peacock's 5th, 

 " Peacock's 5th to Flying-Fish's 5th, 

 " Flying-Fish's 5th to Sea-Gull's 5th, 

 " Sea-Gull's 5th to Peacock's 6th, 



3. 85° 07' 



87 45 



85 31 



87 46 



85 16 



85 52 



85 27 



86 04 



85 12 



84 43 

 26 33 



85 48 

 85 10 

 84 41 



19514-40 1 

 7009-34 

 15475-17 

 9524-40 

 12778-39 

 13426-98 

 10525-39 

 13381-47 

 20845-96 

 12821-91 

 10468-50 

 16055-49 

 12801-15 

 8056-19 

 18524-69 



LAT. DIFF. 



1661-2 



275-2 

 1209-7 



1054-4 

 967-7 

 834-9 

 918-1 



1375-5 



1073-0 

 964-9 

 966-2 

 937-5 

 678-8 



1716-5 



ion 



20649-0 W 



7608-0 

 16758-0 

 10337-0 

 13835-0 

 14546-0 



14501-0 

 22594-0 

 13879-0 

 11322-0 

 17410-0 

 13867-0 

 8720-0 

 20048-0 



POSITION OF 



fjopi Peacock's 6th to Flying-Fish's 6th, 

 E flying-Fish's 6th to Peacock's 7th, 

 ,i «Peacock's 7th to Sea-Gull's 7th, 

 j Sea-Gull's 7th to Flying-Fish's 7th, 

 ,. Hying-Fish's 7th to Sea-Gull's 8th, 

 | Sea-Gull's 8th to Peacock's 8th, 

 I Peacock's 8th to Flying-Fish's 8th, 

 « Flying-Fish's 8th to Sea-Gull's 9th, 

 j Sea-Gull's 9th to Peacock's 9th, 

 I Peacock's 9th to Flying-Fish's 9th, 

 J Flying-Fish's 9th to Sea-Gull's 10th, 

 5 Sea-Gull's 10th to Peacock's 10th, 

 " Peacock's 10th to Flying-Fish's 10th 

 " Flying-Fish's 1 0th to Sea-Gull's 1 1th 

 " Sea-Gull's 11th to Enxados Island, 



ASTRONOMICAL 

 BEARING. 



S.87°04' W. 



87 12 

 87 44 

 89 54 



89 52 

 89 52 



25 00 



26 00 

 25 05 

 24 45 

 24 05 



.84 34 



lllSTVM'HS. 



LAT. DIFF. OF LON. 



660-9 



988-9 



830-3 



26-3 



55-6 



78-1 



12-6 



37-3 



37-6 



1705-7 



12610-0 



13655-0 



1878-3 



2461-4 



259-1 



14012-0 W. 



21965-0 



22889-0 



16379-0 



14833-0 



20829-0 



23487-0 



17429-0 



17553-0 



4942-0 

 1194-0 



38001-5 N. 418194-5 W. 



* The Peacock here changed to Sea-Gull's position. 



Meridian Distances between Cape Frio Light-house and Enxados Island. 



By Sound, ... 1° 08' 52" 8'" 



■ Chronometer, . 1 09 48 



