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VOLUME I 



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yf DESC RI PTIO N of an Okuv^ky, executed onanexo p 



'^ TENIIOUSE, A, M. 



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^a??. By D. RiT- 



Fage 1 



Calculation of the Tranfit of Venus over the Sun. as it is to happbi June 3«f, 

 1769, in tat, 40*^. A^. long, 5A. Weft from Greenwich, By D. Rittknhouse, 



A, M. communicated June ^\fi, 1768, p^ a 



Calcnlation of the fame for the city of Philadelphia, By Rev, John Ewing, A. M, 

 Conwiunicated June 2xjl, 1768, p, c 



An account of the Tranfit of Vii^v^ over the Sv^, June [yl^ lyGg, as ohfcrvedat 

 NoRRixaN, in Pennfylvania, By the Committee appointedfor that obfervatwu 

 _Drawn vp'^ and cummunicatcd^ in behalf of the Committee, by. Rev, William 

 Smith, D. D. p, 8 



,An account of t lie Transit of Vknus over theSvK, June ^d^ 17^9!' and of 

 the Tranfit of Mercury Nov, gth, both- as obferved in)Jie State- Honfc Square^ 

 Philadelphia, By the Committee appointedfor thofe o'hfervations, Dranmvh 

 and communicatxd^ in behalf- of the Committee, by Rev, ^ own Ewinc, A, M, 



P' 39 

 An account of the Tkai^^ IT of Yi^^v^ over the Su7i, June ^d, 1769, as obfcrved 



near Cape Henlopen, on Delaware. By the Committee apointedfor that obfcrvation. 

 Drawn up and communicated^ in behalf of the Committee^ by Mr, Owen 



BiDDLE, p^ oq 



An account of the Tranfit of Venus over the Sun^ June ^d, 1 769, as obfcrved at Fro^ 

 vidence, New England, Drawn up by Benjamin West, A. M, and t ran f 

 mittedto the Society by Mr, Jofiph Brown, p, qi, 



Obfervations of- the Tranfit of Vznvs and Eclipfe of the Sun, June ^d, lyhq, 

 made at the Royal Obfervatory^ Greenwich, By Rev. Nevil Maskelyne! 



B, D, F. R, S, and Aftronom r- Royal. Tranfwitted by himfclf, and communi- 

 cated to the American Philofophical Society, byW ihiAAu Smith, D, D, p, 100 



Some account of the Tranfit 0/ V e n u s and Eclipfe of the Sun, as obferved at the Liz- 

 ard Point, Junc'^d, 1769. B^ Mr, John Bradley, Ex traded from, apapcr 

 of the Afironom^er- Royal. p^ ^qS 



A letter from Rev, Nevil Masicelyne, B, D, F, R, S, Aftronomer- Roy al, to 



Rev, William 5mith, jD. D, Provofi of the College of Philaddphia, givhisr 



fomt account of the Hudfon's Bay and other Northern obfervations of the Tranftt 



of Venus, June ^d, ty6i). •■ p^ {^ ^ 



An account of the terreftriahneafunmxnt between the Obfirvatories of Norriton 

 and Philadelphia; with the difference of longitude and latitude thence de- 

 duced, j5)/ William SmitHj D, D, p,-i\A 



Apparent time of the Contacts of the limbs of the Sun and Venus ; &n7'/?, other 

 circumfiances of m.ofl note, in the different European obfervations of the Tranfit^ 

 June^d, 1769. ' ■ " ' p.i'zo 



An improvement in the conJlruEion of Godfrey's (commonly called Iladky'sJ ihia- 

 irant. By Rev, John Ewing, A, M, p^ 126 



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