ASTRONOMICAL PAPERS. 



55 



The calculated time per Nautical 



Almanac. 



D. h 



1767. May 30, 



J me 13, 



iyC^.iVIar. 1, 



1769. /fii. 16. 



16, 



ao, 



yi/r// 3, 



10, 

 II, 



12, 



5. 



31, 



Jiwe 6, 



7j 

 ^3, 



29, 



15 

 14, 



14. 

 15. 



m. 

 16. 



17- 

 48. 



36- 



13- 



S7' 



15- 



34- 



ly- 



22. 



i9- 



22. 



20. 



42. 



ai. 



16. 



11. 



16. 



17. 



46. 



19. 



51- 



19. 



5T- 



21, 



47- 



14. 



50. 



16. 



16. 



16. 



16. 



16. 



31. 



16. 



3i- 



16. 



56. 



15. 



12. 



13- 



45- 



13. 



45- 



17- 



6. 



13- 



28. 



15- 



2'Z. 



IZ. 



15. 



17. 



45- 



fee. 



10 Em. I//. 

 37 Km. 3./. 

 24 im. I/?. 

 34 ]',m. T/7. 

 46 Jin). I/?. 



11 Km. 2(/. 

 29 im. 1/?. 



29 Im. 1/?- 

 5 J Im. 2(/. 

 35 Im. iJL 

 Is Im. I/?. 



4 Im. %d. 

 24 Im. I/?. 

 24 Im. 1/?. 

 14 Im. jji. 



4 Im. af/. 

 13 Im. T/?. 

 13 Jm. i/i?. 

 20 Im. jfy?. 

 20 !m. iy/, 

 49 Tm. .1/7. 

 59 Em. if. 



13 Km. 2^. 



13 Em. 2(/. 

 31 Km. I/?. 



30 Km. jfl. 

 ir Km. jp. 

 ^9 Km, i/?. 

 10 Kin- 2f/. 



The oblcrvcd 



Time at 

 Philadelphia, 

 D. h. m. fee. 

 10. 15. 32 



9- 



9- 



10. 



30, 



i3> 

 I, 



9> 



12, 

 16, 14 



iS. 6 

 46. 49 



37- 2 

 8. 56. 50 



10. 33 9 



21. ji 



20, 15. 42. I 

 23, 16. 16. 21 



17, 12. AS- 21 

 3, 14. 50. 48 



11, 9, 49- 14 



12, II. 15. 49 



5, II, 30. 28 



'File Norritou 

 obf. red. to the 

 merid, of Phil. 

 D. h. m, fee. 



16, 14. 22. 6 



23, I6. 15. 57 



3, J4, 50. 21 



10, 16. 46. j6 



Khc diifercnce 

 of merid. of Gr, 



and Fhiladcl. 

 D. h. fee. 

 a 38 



59- 31 

 I. 35 



5» 

 4, 



5» 



7> 8. 44. 37 



22, 



29, 

 23. 

 II, 



8. 



10, 



7- 



27. 35 



21.55 

 15. 4H 



44" 4^ 



12. II. 15. 33 



1*> ita _ ipr PV 



5, II. 30. 23 



2T, IT. 56. 9 



6, 10. 12- 28 



4* Mh ^ «* W* 



7, 8. 44- 39 

 13- 12. 5. 57 



4, 



59- 



5» 



0. 



5» 



I, 



5, 



0, 



5, 



0. 



S> 



0. 



5» 



0. 



5- 



0. 



5. 



0. 



5. 



0. 



5* 



I. 



5- 



0. 



5» 



0. 



5' 



0. 



5> 







5, 



0. 



5» 



0. 



5, 



0. 



5- 



0. 



5, 



0. 



5- 



0. 



5- 



0. 



5, 



0. 



5- 



0. 



5- 



0. 



f. 



■ 0. 



32 



56 



2 

 38 



23 



54 

 14 



38 



43 

 36 



3 

 18 



SO 



24 

 40 



52 



57 

 40 



3^ 

 36 



34 



34 



SS 

 16 



I 



29 I 



L.#- ^ 



— J-^ -'^ r 14 



Y - '^ I .- - Vi T-"— TV-rf " -^^-^ ^" 



r i d i 



lans. 



Now if we take the mean of all the 2 1 foregoing deter- 

 minations of our longitude from Greenwich, by the 

 ccHpies of the lirft liitellite, rejeaing only th.>fe of March 

 I ft, and April 9th, 1 768, which differ moft from the others, 

 the refult will be 5'. o' . 35'' for the dilFerence of our me- 



Thcfe ought evidently to be rejcaed, as they dif- 

 fer near twice as much, from the mean of the reft, as any 

 other of the determinations do, yet the retaining of them 

 will make no difference in the refult. If the mean deter- 

 mination of tlie longitude be taken from the immerfions 

 alone, rcieding that of the ift of March, 1768, it will be 

 c\ o^ 36^\ '^!"'^1 i^ i'vom the emcifions alone, it will be 5*". 

 o^ 34^ when the obfervation of the9ih of April, 1768, is 

 excluded, Therefr re the mean of both, (vvhich lliould 

 always be preferred.) is 5''. o' , 35'^ 



As a farUrer confirmation of this conckifion; if this dif- 



ference of meridians be applied to the Greenwich obfcr- 



vations 



