ANNUAL ADDRESS OF THE PRESIDENT. LXXXV 
51.—ArryY; Sir Geo. B. Extracts of papers, printed and manuscript, 
laid before the Commission appointed to consider the steps to be taken for 
restoration of the standards of weight and measure, and the subjects con- 
nected therewith. Arranged by G. B. Airy, Esq., Astronomer Royal. 
Printed by ordet of the Lords Commissioners of the Treasury. London, 
1840. 4to, 155 pp. (Consists of a vast number of brief extracts giving the 
opinions of many experts upon various points connected with the construc- 
tion and use of standards of weight and measure, and the advantages and 
disadvantages of various systems of such standards.) 
52.—CLARKE; Lt. Col. A. R. Results of the comparisons of the stand- 
ards of length of England, Austria, Spain, United States, Cape of Good 
Hope, and of a second Russian Standard, made at the Ordnance Survey 
Office, Southampton. By Lieutenant-Colonel A. R. Clarke, C. B., R. E., 
F. R.S., &c., under the direction of Major-General Sir Henry James, R. E., 
F. R.S., &c., director-general of the Ordnance Survey. With a preface 
and notes on the Greek and Egyptian measures of length by Sir Henry 
James. Phil. Trans., 1873, pp. 445-469. 
53.—ADAMS; JoHN Quincy. Report upon weights and measures, by 
John Quincey Adams, Secretary of State of the United States. Prepared in 
obedience to the resolution of the Senate of the 3d of March, 1817. Wash- 
ington: printed by Gales & Seaton. 1821. 8vo, pp. 245. (Contains report 
of F. R. Hessler on comparisons of English and French measures. pp. 153- 
170.) 
54.—ALEXANDER; J.H. Report (made to the governor of Maryland) on 
the standards of weight and measure for the State of Maryland; and on the 
construction of the yard-measures. Baltimore, Dec. 13, 1845. 8vo, pp. 
iv +.213. 
55.—HAssLER; FERDINAND RopOLPH. Comparison of weights and meas- 
ures of length and capacity. Reported to the Senate of the United States 
by the Treasury Department in 1832, and made by Ferd. Rod. Hassler. 22d 
Congress, lst Session, Ho. of Reps., Doc. No. 299. Washington, 1832. S8vo, 
122 pp., with 4 folding plates. (Contains a paper by Trallés giving impor- 
tant details, not published elsewhere, respecting the original iron meters of 
the Commission des Poids et Mesures of 1799.) 
56.—HassLer; F.R. Report from the Secretary of the Treasury, trans- 
mitting the report of F. R. Hassler, superintendent of the Coast Survey, and 
of the fabrication of standard weights and measures. 25th Congress, 2d 
Session, Senate, Doc. No. 79. Washington, 1837. 8vo,16. pp. (Explains 
method adopted for determining subdivisions of the troy pound.) 
57.—HassLER; F. R. Report upon the standards of the liquid capacity 
measures of the system of uniform standards for the United States; with 
description of a new original barometer, and of the balance for adjusting 
the half bushels by their weight of distilled water. By F. R. Hassler. 27th 
