~ 
_ the compasses of a number of national ve 
corrected and investigations made. Also, that, at the request 
39 
On the 5th of January, 1865, the Committee of the 
Academy, through Mr. Saxton, reported progress. The 
Committee has not yet presented a report, but the experi- 
ments have been conducted during the past year at great 
expense of time and labor, and it cannot be doubted that the 
results will be of much practical value. It is particularly 
desirable that the subject should be investigated with the 
greatest care and thoroughness, and that the conclusions 
drawn should be based upon a large and extensive range of 
experiments. 
On the 8th of May, 1863, at the request of the Navy 
Department, a Committee was appointed to investigate and 
report upon the subject of Magnetic Deviation in Iron Ships. 
This Committee consisted of the following members : — 
A. D. Bacueg, Chairman, BenJAMIN PEIRCE, 
JosepH Henry, Cuartes H. Davis, 
Wotcorr Grpss, FarrmMan ROGERS, 
And by authority of Art. I., Sect. 8, 
W. P. TROWBRIDGE. * 
This Committee presented a report to the Academy 
January 7, 1864, when, on motion, the report, with the 
accompanying documents, was accepted, and the Committee 
continued. (See Annual Report of President, 1863, pages 
A copy of the report was forwarded to the Navy Depart- 
ment February 11, 1864. 
At the last session of the Academy, held January 24, 
1866, Mr. F. Rogers reported, from the Committee on Mag- 
netic Deviations, that its labors are still continued, and that 
ssels have been 
of the members, Admiral Davis had been appointed Chair- 
