ARTICLE VII. 



On the Longitude of Several Places in the United States, as deduced from the 

 Observations of the Solar Eclipse of September 18th, 1838. By E. Otis Ken- 

 dall, Professor of Mathematics in the Central High School of Philadelphia. 

 Read November I, 1839. 



This eclipse was observed at the following places : — 



Hudson Obs'y, Western Reserve College, Ohio, 

 Alexandria, D. C, 



Washington, Capitol, 



Haverford School, Delaware County, Pa., . . 



Philadelphia, State House, 



Germantown, Pa., C. Wister's private Observatory, 

 Burlington, N. J., S. Gummere's School, . . . 

 Princeton, N. J., Nassau Hall, ....... 



Weasel Mountain, N. J., Station of Coast Survey, 



New Haven, Yale College, 



Southwick, Mass., A. Holcomb's private Obs'y, 



Wesleyan University, Conn., 



Williamstown College, Mass 



Dorchester Observatory, Mass., 



Dover, Tuscarora County, Ohio, 



Brooklyn, N. Y., E. Blunt's private Obs'y, . . . 



Lat 



ITUDE. 



J_iONGIT0DE. 



From Greenwich. 









h. 



m. s. 



+ 41° 



14' 



37" 



— 5 



25 47-5 



+ 38 



49 







— 5 



8 16-0 



H- 38 



53 



23 



— 5 



8 6-0 



+ 40 



1 



12 



— 5 



1 15-0 



+ 39 



56 



58 



— 5 



39-0 



+ 40 



1 



59 



— 5 



41-9 



+ 40 



5 



10 



— 4 



59 30-1 



+ 40 



19 



56 



— 4 



58 38-3 



+ 40 



52 



35 



— 4 



57 25-7 



+ 41 



17 



58 



— 4 



51 47-5 



4- 42 







41 



— 4 



51 16-0 



+ 41 



33 



8 



— 4 



50 2-0 



+ 42 



42 



44 



— 4 



52 52-0 



+ 42 



19 



11-5 



— 4 



44 17-3 



+ 40 



30 



52 



— 5 



25 56-2 



+ 40 



42 







— 4 



56 0-0 



When there were more observers than one at the same place, I have taken 

 the mean of all the observations, giving to each its proper weight. In Phila- 

 delphia it was observed by several persons, in different parts of the city. The 

 following table contains a list of the Philadelphia observations, with the differ- 

 ences of latitude and longitude between the places of observation and the State 

 House, which has been already published in the Proceedings of the Society, 

 vol. I. p. 36. 



