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ASTRONOMICAL PAPERS. 



171 



TIius fubt;raaino; the time of the cxternrvl contaa at Norrkon, from the mean of the ten ex- 

 KTnal contads In the above table, we have 5h. 9'. 40", ^5 i"'"' tlie mean difference of longitude 

 by the obfervations. But the true mean diff. oflong. is jh. li'. AA",95- '^'^^^ difTeicncc of thefe 

 tvvo:T^3'. 4^',7==i8,V',7 is the mean obfervcd cffe^ of parallax. But the mean calculated 



Whence i?-.f,%%Q . l84:'^7 : : S^jaia : 8^406. Thus, by one fmgle comparifon of the 



therefore have been necdlcfs to enter down tliefe feparate comparifons, if it were not to fee how 

 they differ from each other, and which (if any) ought to be fejeaed. 



, -i 



H[. m. 

 %, 12. 



5- I- 



Norriton and Grceriivu/j, 

 fee. feconds. 



50 Norriton. 405,8/|6 Greaitv. 



2pr=dlff. of nicrld. ^16,624 Norriton 



7. 14- 19 



7. II. a Gf'itnivub. 



189,222 



4-7^778 



3. 17=197 



It 



Sun's Paralla\--8",87I5 



Norriton and M^iddle 'Teniplc. 

 % 13. $0 Nvrriion 405,841 il-f. Ttw/. 



J, I. 4=diff. merid. 216,624 NoniloH. 

 ,7. 13- 54 189,217 



7. II. 5-J ^I'<^' 'Tempk. — 20^,967 



a. 48i-i68",25 



Sun's raraUax.^7",5776. 



Norriton and Windfor CuJUe, 

 2. 12. 50 Norriton. 40S ,664 H^ifi'/for. 



J, 59. 4-§==difF. merld. 216,624 Norrilon. 



II. 54i 



189,04 



7. 8. 30 fVi/idfor. 



+is"a6 



H. 



2. 



5- 



3. 24i=-'^04",s 



Sun's Parallax==9",2l8l. 



Norriton and Oxford, 

 2. 12. 50 Norriton 405,236 Oxford, 



4. 56. a5=diff. merid. 216,624 Norriton 



7- 9- IJ 



7, 5. 58 Oxford. 



188,612 



+8",388 



3. 17^197 



// 



Sun's Parallax:=8',9002. 



2. 



6. 



Norriton and Ujfal. 

 12. 50 Norriton. 39^^632 Upfal. 



X2. 15— diff. merid. 216,624 Norriton, 



Norriton and Spital Square, 



m. fee. feconds. 



1%. 50 Norriton. 40$^%$% Spital Sq. 



I. 12— diff. merid. 216,624 Norriton. 





.8. 25- 5 

 8. %%. 9 f7)^/. 



182,008 



6'',oof 



a. 56--176" 



Sun's Parallax=:^8'',23399. 



7. 14. 2 189,228 



7. iO. 44^^ y^piliilSqiiart. 4"^''»5'^^ 



3. i7.|=i97//,75 



Sun*s Parallax;:^8'',9055. 



Norriton and JCczv. 



3. 12. 



5. O. 



50 Norrilon. 405,755 -AT^tf. 



Ij^^diff. merid. 216,624 Norriton. 



7. 1.1- 5 



189,131 



7. 9. 59 A'i.'7f. 



,// 



r^^sT^ 



6=^iZ6". 



Sun's Paranaxz:^8",3So4. 



I^orriion and Shir burn Oafile. 

 a. 12- $0 Norriton. 40$,4^'% Shirb.Caf. 



4. 57. 32=diff. merid. 216,624 Norriton. 



7. 10. 22 188,828 



7. 7. 4 .'?/j;W'. c^/c. -f 9'',i72 



3. l8:=:I98 



Sun's Parallax™8'',935r. 



a. 



4- 



Norriton and Glafgoiv. 

 11, 50 Norriton. 400,867 Glafgoiv. 



44. l8™diff. merid. 216,624 Norriton, 



6. 57. 8 



6. 54. 29 Glafgoiv, 



184,243 



—25^243 



,7 



39^159 

 Sun's Parallax=7^',3537. 



2. 



6. 



Norriton and Sto<:ldwlm. 



12. 50 Norriton, 339,3^8 Stockholm. 



13. ^5^=diff. merid. 216,624 Norriton, 



8. 26. 45 



8. 24. I Stochhol??7. 



182,764 



1 8", 764. 



a. 44^164,''. 



Sun's ParaUaxi=7^'',6464, 



iVfiflrt of the tvholf^ 8'',403. 



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