APPENDIX 



475 



thrown into the Indian Ocean off the coast of Natal was recovered 

 at Alcobaco in Brazil in lat. 17° 30' S. It was held by Dr. Schott 

 (pp. 19, 27, map 4) that the track of this bottle probably lay near 

 St. Helena. Fuller details of this interesting drift have been given 

 on p. 63. 



Data relating to Bottles thrown over in the vicinity of Ascension 

 (7° 56' S. Lat. ; 14° 22' W. Long.) 





Starting-place 



Time when 



Place of 

 Recovery 



No. 



Distance in 







S. 

 Lat. 



W. 

 Long. 



thrown over- 

 board 



of 



days 



Miles and 

 Daily Rate 



Remarks 



1 



2 



3° 30' 

 6° 2' 



15° 0' 

 15° 6' 



May 

 January 



Trinidad 

 Trinidad 



192 



3000 at 

 15-6 per 

 day 



4017 at 

 18-1 per 

 day 



3264 at 

 11-7 per 



Schott, map 2, No. 

 318; position ap- 

 proximate 



Nautical Magazine, 

 1852, No. 45 



3 

 4 

 5 



7° 30' 

 8° 39' 

 10° 4' 



13° 0' 

 13° 50' 

 11° 55' 



September 



February 23, 

 1875 



[February 22, 

 1875 



Trinidad 



Jamaica 

 (Morant 

 Bay) 

 Grenadines 



222 

 280 



Schott, map 3, No. 

 333 ; position ap- 

 proximate 

 Schott, p. 27, map 

 1, No. 302 



Schott, p. 27, map 

 1, No. 301 



6 



11° 38' 



9° 5' 



February 21, 

 1875 



Paranahiba, 

 N. Brazil, 

 lat. 2°40'S. 



175 



day 

 1977 at 

 11-3 per 

 day 



Schott, p. 27, No. 3 



Note. — Nos. 6, 5, 4, were dropped over from the ship Schwan on three successive 

 days. 



Note 19 (p. 59). 



The Guinea Current. 



In the region between 2° S. and 10° N. lat. and 20° and 32° W. long., 

 where the Guinea Current flows east between the North and Main 

 Equatorial Currents, lies an area of conflicting streams, a subject 

 which is discussed in detail by Dr. Schott (p. 17). A bottle thrown 

 over in its centre in May would be cast up on the coasts of Africa; 

 whilst if dropped over in October it would be carried to the West 

 Indies. The effect of the shifting boundaries of these currents is 

 well illustrated in the vicinity of St. Paul's Rocks in the south-west 

 corner of this region. Here in certain months of the year it would be 

 difficult to predict whether the bottle would drift to the east or to 

 the west. A striking example is supplied by Schott in the case of 

 two bottles thrown overboard together on February 24, 1893, in 

 lat. 1° 44' N. and long. 27° 16' W. (pp. 10, 18, map 1). One was 

 recovered on the coast of Sierra Leone on September 8 of the same 

 year, and the other on the Nicaraguan coast on March 8 of the following 

 year. 



The Guinea Current must often carry back to the African coasts 



