THE NEW NATIONAL STANDAED OF LENGTH, AND ITS PEINCIPAL COPIES. 697 
the offices named ; by an appreciation of the careful and accurate habits of the persons 
employed in them ; by the limited accessibility to standards preserved in such offices, 
which it may be presumed will be made available for their legitimate purposes only ; 
and by the occasional utility of accurate standards in verification of the operations to 
which these offices are devoted. We have in some measure departed from the recom- 
mendation contained in the last clause of Article 11 of the Report of 1841, December 21, 
in proposing that one set be transferred to the Royal Society of London. In this pro- 
posal we have been actuated by the considerations that the character of the Royal 
Society in every respect fits it for recognition as a depositary of scientific standards ; 
that the first attempt in Britain to obtain an accurate standard of length, and the only 
attempt to secure a durable standard of weight, were made by that body ; that it 
possesses at present a very valuable collection of standards ; and that acknowledgment 
is due to it for its very important contribution to the means of restoring the value of 
the lost Standards. We adhere to the recommendation in Article 6 of the Report of 
1841, that one set of copies should be imbedded in the masonry of a public building. 
In the distribution of the different copies, we have been guided by trifiing peculiarities 
in the copies themselves. 
“ 35. After careful consideration, we recommend, — 
That the copy of Length Standard, No. 2, and the copy of Weight Standard, PC, 
No. 1, be deposited in the Royal Mint: 
That the copy of Length Standard, No. 3, and the copy of Weight Standard, PC, 
No. 2, be transferred to the Royal Society: 
That the copy of Length Standard, No. 5, and the copy of Weight Standard, PC, 
No. 3, be deposited in the Royal Observatory of Greenwich : 
That the copy of Length Standard, No. 4, and the copy of Weight Standard, PC, 
No. 4, be immured in the cill of the recess on the east side of the Lower Waiting 
Hall in the New Palace at Westminster. 
“ 36. We have to report, that, under the sanction of the Lords Commissioners of the 
Treasury, as conveyed by letter of Sir Chaeles E. Teevelyajv, dated 1853, June 23, 
and with the permission of the Commissioners of Public Works for immuring one set of 
standards in the masonry of the New Palace, as conveyed by letter of T. W. Philipps, Esq., 
dated 1853, March 21, we have deposited the Standards and the several copies above 
named in the places specified above. 
On the question of referring the Values of the Measure and Weight represented hy the 
Standards to natural elements. 
“ 40. After due consideration of this question, referring to the reasons explained in 
Chapter II. of the Report of 1841, December 21, we adhere to the recommendation 
contained in that chapter, and embodied in Articles 1 and 2 of the same Report, that 
no reference be made to natural elements for the values represented by the standards. 
“41. We consider the ascertaining of the earth’s dimensions and of the length of the 
seconds’ pendulum in terms of the Standard of Length, and of the weight of a certain 
