KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 57. N:0 4. 187 



Cabrera Stockholm Anson Seville 



bueno chaht chart chart 



Farallon de Pajaros 19° 30' 20° 19° 30 r 19° 30' 



Malabrigo (northern point) 21° 14' 22° 20' 21° 21° 



Rica de Oro 34° 22' 36° 35° 33° 



Rica de Platå 38° 50' 40° 20' 38° 40' 37° 40' 



Gaspar Rico 44° 28' 48° 44° 30' 44° 



Barbudos 54° 25' 56° 30' 54° 30' 54° 30' 



Baxo de Villalobos 62° 54' 65° 30' 62° 20' 62° 20' 



Baxo de Manuel Rodriguez 68° 52' 70° 30' 78° 68° 20' 



San Francisco 73° 35' 73° 83° 30' 73° 30' 



Dona Maria Laxara 76° 36' 76° 30' 86° 40' 76° 40' 



Los Monges 89° 84° 30' 99° 10' 89° 20' 



Isla de Paxaros 91° 5 r 86° 30' 101° 30' 91° 5' 



La Desgraciada 91° 50' 86° 40' 102° 10' 91° 40' 



Roca Partida 97° 45' 93° 108° 98° 



Cape Mendocino 94° 53' 93° 101° 30' 



Cape San Lucas 113° 13' 113° 123° 20' 122° 30' 



Socorro 113° 40' 112° 20' 123° 30' 122° 



Acapulco 124° 30' 123° 30' 134° 30' 134° 20' 



The La Pérouse chart, 1786 (Pl. V). In his visit to Monterey in California in 

 September 1786, the famous French traveller acquired a Spanish manuscript chart of the 

 Pacific, which, in his own words, "differed very little from that which was engraved for 

 Anson' s Voyage". 1 La Pérouse' s chart also has been issued in a printed form; and to 

 demonstrate the resemblance with Anson' s chart a reproduction of that has been printed 

 on the same sheet (No. 67) in La Pérouse's Atlas. 



On both these charts the original graduation from San Bernardino has been changed 

 to longitudes from the meridian of Paris. Other alterations and additions were also made 

 by La Pérouse: thus he has laid out the Sandwich Islands in accordance with the observa- 

 tions of Cook and himself ; and when he was going to insert his track on the Spanish chart, 

 he, like the editor of the Anson chart, f ound that the distance between California and the 

 Mariannes was too short. But whereas Anson, for the reasons above given (p. 185 ), increased 

 the Spanish original by 10 degrees in the middle, La Pérouse made the corresponding 

 lengthening on the eastern side of the chart nearest to California. Hereby the Los Monges 

 group, which, according to the Anson chart, lies in 131° — 135° long., came to be placed 

 in 141° — 145° long. W. from Paris, and its distance from the real position of the Hawaiian 

 islands was diminished from 26 — 27 degrees to 16 — 17 degrees — a circumstance which 

 naturally had a strong effect on La Pérouse's conception of the identity of these two 

 groups. A very peculiar thing has thus happened: the Los Monges group, which first had 

 to follow the coast of California in its removal towards the east, has since then, so to 

 speak, turned back again and taken a place far out in the Ocean. 



The La Pérouse chart lacks the year-figures which have helped us to date the Anson 

 chart; but in other respects the agreement between them is so great that there is no reason 

 to doubt that they are ultimately based on a common original. 



1 A Voyage round the World, English translation, II, p. 227. 



