144 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



(i.) ItEPORT (IF MIDSHIt'MAN W. Jl. FLKTCHEB, U. S. N. 



\J. S. S. Hartford, Second IJate, 



At Sea, May 19, 1SS3. 

 Sir: The following is the report of my tiinecountiiis dnring- the total eclipse of- the sun of 



May 6, 1883. 



The chronometer used was " Hutton" No. 202, keeping local sidereal time; chronometer error, 

 slow 9. .5 seconds. The chronometer time, ten minutes before the time by computation of second con- 

 tact, was 2'' 18'" !iS''. At this time I commenced and called out each minute. Id, 9, S, 7, &c., to 1. 

 Prom 1'" every ten seconds, 50, 40, &c., to 0. 



I then marked the time of second coiitact, observed by Mr. E. T). Preston, of the United States 

 Coast and Geodetic Survey, wliich was 2'' 29'" 19", and ten seconds thereafter called out 290, and 

 each succeeding ten seconds, 280, 270, 260, &c., ,to 0, Then 1 marked the time of third contact, 

 which was 2'' Si"" 44.5", and called out each interval of ten seconds up to 1"", then each minute up 

 to ten njinutes. 



In addition to tliis I marked the times of first and fourth contacts, observed by Mr. W. Upton, 

 United States Army Signal Oftice. 



During the remainder of the time on the island I was engaged about six and one-half days in 



the field-work of a survey of the island, and three and one half days iu plotting the survey, under 



the direction of Lieut. E. F. Qu although, U. S. N. 



Very respectfully, 



W. B. FLETCHER, 



Ifaval Cadet, U. S. W. 



Prof. Edward S. Holden, 



In Char(/e of JJ. S. Eclipse Expedition. 



U-) REPORT OF MIDSHIPMAN DOTLE, U. S. N. 



U. S. S. Hartford, Second Rate, 



At Sea, May 19, 1883. 

 Sir: The following is a report of my pointing of M. E. D. Preston's telescope during tlie 

 eclipse of May 6, 1883. The pointings began and ended with totality; during which time I pointed 

 the telescope at eleven different parts of the corona. The situation of these points is shown on the 

 diagrams accompanying this report. No. 1 (omitted) is my original ; No. 2, a copy. I attended 

 all rehearsals and practiced at pointing the telescope at ditterent places, and at estimating dis- 

 tances in terms of the sun's diameter. In addition to the above, I assisted Lieut. E. F. Qual- 

 trough, U. S. N., to make a survey of Caroline Island. 



Very respectfully, 



JAS. G. DOYLE, 



Naval Cadet, U. S. N. 



Prof. Edward S. Holden, 



In Charge of U. S. Eclipse Expedition. 



(i). MEMORANDUM IN RFMAUl) TO THE PHOTOdRAPHW OBSERVATIONS OF THE ECLIPSE. 

 [Note. — The followiu^' memoniiKluni iu repaid to the iiistruiiieuts ami icsiiUs of the English p.arty has been 

 kindly handed to me by Mr. H. A. Lawrance at my leqiiest. — E. S. H.] 



The English party consisted of two observers, Mr. H. Aubrey Lawrance, F. C. S., assistant 

 to the committee on Solar Physics, and JIi'. C. Ray Woods, of the Normal School of Science, South 



