36 



MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



OBSERVATIONS FOR TIME. 



[Aspiuwall, March 11, 9.45 a. m. Double altitndes of suu. S. J. Brown, observer. Chronometer, Hutton, 202. 



E. D. Preston, recorder.] 



1340 fast, 7"' 2>.9. S. J. Brown, computer. 



[Caroline Island, April 20, p. m Double altitudes of sun. W. Upton, observer. Chronometer, Negus, 1589. 



C. S. Hastings, recorder.] 



INDEX COKRECTION. 



Above readings were through clouds. 

 W. Upton, observer. W. B. Fletcher, recorder. 



II. 



Sky clear f conditions favorable. 



