124 



MATHEMATICAL and 



mile N E. of Edinburgh is given from Dr. Lind's lateft obfcrvations; and the longitude (viz. 

 Ia^ 45^' of time) is taken from a mean of two refults, deduced by the ailronomer royal from 

 Dr. I.ind's obfervation of the eclipfe of the Moon in December, 1769. The lonp-itude of 

 Hawkhlll may be fm-ther deduced from the end of the Solar eclipfe ubfcrvcd there June 3d, 

 1769, which was at zoli. 19^ 45'^ apparent time, 



K I R K N E W T O N; lat. 55^. 54^ ^o" N. 

 H. ni. fee. 



7. 14. a8-J Internal contact):. Judged of by the completion of the thread of light. This 



obiervation was made b)^ the Rev. Mr. Bryce. He did not fee the external contadl; nor has 



he fixed the longitude of Jiis place of obfcrvation. He %s it is 17 miles Wc(t of Hawkhill. 



But the longitude may be deduced pretty near the truth from the end of the folar eclipfe, which 



was obfcrved here at aoh. i8^ 'i;^^' apparent time. 



6. 5r. 



GIBRALTAR; lat. 56°. 4'- 44" N, 



8 External contac^l. ? t5 t ■ ^ ^ ^-r ,• - 

 o T , 1 , a f By L-iCUtcnant -janhne, 



7. 8. 21 Internal contact. 3 *^ 



The longitude of thiis place is not fixed; but for fixing the fame Mr. Jardine gives the fol- 

 lowing ohfcrvations, viz. 



June 8th, iftfat. emcr. 9h. ^%'. 34^' clock 1'. l&'\ before mean time. 

 15th, iftfat.emer. li, 15. j4| clock i. a8 before mean time. 

 2jth, 3d fat. emcr. ll. 59, 56 clock I. 44 before mean time. - 



CAMBRIDGE, New-Enghnd; lat. 42^. 25^ N. long, ^h, 4V. Wefl. 

 a. 30. 4 External contaa."? By John IVhihrop, Efq. J*. R. S. HoUifian ProfelTor of 

 1, 47. 30 Internal ditto, ^ Mathematics. 



He makes 0's horizontal diameter at 9 in the morning=3i', 33'',2; nnd 5 's diameter 

 58'/, 6, the leaft dillance of tlic centers 9'. 59'^,? ; lb that tlie true duration of the ingrefs Ibould 

 be I8^ sd"--, but this beingcontra(5ted at Cambridge Ij'' by parallax leaves 18'. 4i^',"und there- 

 fore he thinks the ift conta^: happened nearly l'. J$". before the imprcffion was difcovercd by 

 him. I'he time of the neareft approach of the centers he makes at 5h. 37' ; all apparent time. 



Mr. Winthrop, with a power of the great telefcope, magnifying 260 times, could perceive 

 no iiich duflcincfs round $ when on 0, as he faw at the internal contad, nor that impcrfc^b 

 light which Mr. Dunn mentions in refpe(5t to the tranfit of 1761. He gives the above lonn-i- 

 tude as near the truth ; but for the bett cr fixing his longitude, he adds the following cclipfcs^of 

 Jupiter's fatcllites, as obfcrved at Cambridge, New-Bneland, viz. 



1768. Apparent time, i ft Sat. 1769. Apparent time, ift Sat. 



May 14. 

 Aug. 23. 



April 25. 



May 18. 

 June 10. 



9h. 13'. 52'' 



9. 27. 27 



9- 37- ^5 

 9- 4J- 54 



loh. 19/. f 

 7- 31- 50 



June 7., 9. I. 15 ad S4t. 



F R 



E N C H O B S Ji R V A T I O N S, 



PARIS. 



H. m. fee. 



7- 38- 43 

 7. 38. n 

 7- 38". 43 



Int. cont. 



M. M>f!^r, with an acromatic telefcope, 12 feet focus, aperture 



3;!' inch. Power i8o. 





M K U T E, near Paris. ' 

 7. 3^' 45 Internal contad. McfT. fk Fomhy^ Bailly^ dc Borry^ and two opticians. 



7 

 7 



7 



ROYAL OBSERVATORY of PARIS; lat. 48°. 50'. 14'/. N. long. 9'.I5''E. 



38. 537 S-'^' ^''#'"'"''? Thury^ I Both with 3| feet acromatic telefcopcs 



38, 57>- Int. cont. 2,I^ukc r/,? C/j^W/w | DoUond. 



33* 50J ^- Marald'i^ with a 3 feet ditto, made at Paris. 



of 



7- 38. 51 



St. H U B E 



Internal contatH:. M. Le Mannicr, 



R T. 



BORDEAUX, 



7. 38* 50. Internal contact, i!^, Fogvcre, 



BREST. 



7. 38. 58 Internal contadl. M. Verdun, 





Ail 



