Ill [237] 



and solar eclipses; and we may be assured that, if Mr. Walker (hitherto 

 without public encouragement in the science which he cultivates with such 

 predilection) could be placed in a position to finish the considerable task he 

 has undertaken, it would result in honor to the country, a large and useful 

 contribution to science, and numerous elements of advancement for astro- 

 nomical geography on this continent. On another hand, Professor E. O. 

 Kendall has computed the co-ordinates of the solar eclipse of the 18th of 

 September, 1S3S ; and, as he himself remarks, '' The reduction of future 

 observations of solar eclipses will be much facilitated by the publication of 

 these CO ordinates in the Berlin Jahorbuch since 1839." 



Having communicated my observations to these gentlemen, they at once 

 distributed between themselves the task of their comparison and reduction, 

 by applying the errors of the tables. I consider myself, then, as indebted 

 to them, not only for having saved me from long calculations, but still more, 

 that from the care which they have taken to verify their respective com- 

 putations, the results they have deduced offer, for their correctness, a double 

 security. 



The following table exhibits the reductions respecting my observations, 

 and those with which they have been compared : 



