I 



ASTRONOMICAL 03SERVATIONS 



TABLE III. 



Fort Prince of Wales 



St- Joseph. 



Taity. 



Philadelphia. 



Cape Francais. . 

 Cambridge 



TABLE IV. 



Difference of time between the interior and exterior contacts at the 



center of the earth. 



Petersburg 

 Wanllms. 

 Batavia. . ^ 

 Oremburg 

 Gurief. 

 Orsk. 

 Pekin. 



Fort Prince of Wales. 

 St. Jfiseph. 

 Greenwich. • 



-Cape Francais. 

 Oxford. 



)>Egress. 



Ingress- 



Mean. 



18 46,4 



IV contact at Paris, center of the earth, Table I. 

 Mean result of Table IV. .... 



Ill contact by the observations of IV contact. 

 By the mean of direct observations, Table I. 



Mean result for the III contact 



II contact by Table II 



Total duration of the interior contacts (n) 



By the observations of Wardhus. . 5h 42' 14",0 



By ditto Cajaneburg. 5 41 35 5 



Mean. . . (a) 



By the observations at Taity 



Bv the observations at St. Joseph. 

 By ditto . F. P. Wales. 



13 46 27,5 effect of parallax. 

 —18 46,4 



