THE NEW NATIONAL STANDAED OE LENGTH, AND ITS PEINCIPAL COPIES. 701 
Table (continued). 
Old Name of Bar. 
New Standard 
Number.^ Temperature. 
Bronze 38 
38 
62*14 
Bronze 39 
39 
61*87 
Bronze 40 
40 
61*99 
Baily’s a 
41 
62*37 1 
Baily’s B 
42 
61*67 1 
Baily’s C 
43 
61*57 r 
Baily’s D 
44 
61*68 J 
Brass 1 
46 
61*99 n 
Brass 2 
47 
61*14 y. 
Flat Brass Scale 
48 
62*00 J 
Kew Bar 
49 
61*84 
New Tubular Scale ... 
50 
63*09 
Donkin’s Copper 
51 
61*87 1 
Maudslays’ Copper... 
52 
61*82 V 
May’s Alloy 
53 
61*53 J 
Swedish A 
54 
63*55 
Swedish B 
55 
61*93 
Swedish C 
56 
61*77 
Low Moor A 
57 
62*58 
Low Moor B 
58 
61*92 
Low Moor C 
59 
61*65 
Low Moor D 
60 
61*79 
Cast Iron A 
61 
62*56 '] 
Cast Iron B 
62 
62*90 y 
Cast Iron C 
63 
62*34 J 
Cast Iron D 
64 
62*63 
Cast Steel A 
65 
62*22 T 
Cast Steel B 
66 
62*11 V 
Cast Steel C 
67 
62*47 J 
Cast Steel D 
68 
62*62 
End-bars. 
Bronze 
69 
61*67 1 
Swedish A 
70 
62*07 S 
Low Moor A 
71 
62*01 J 
Cast Steel 
72 
1 62*03 
Cast Steel 
73 
61*96 q 
Bronze 
74 
1 61*91 >■ 
Bronze 
45 
! 62*19 J 
Old Scales. 
Baily’s Tubular 5 
‘ 59*97 q 
Simms’s Tubular 4 ... 
1 60*55 1 
R. Ast. Soc. Tubular... 
1 60*78 f 
Danish Tubular 
60*74 J 
Distribution of Bars. 
At the Eoyal Observatory, Greenwich, still disposable. 
At the Eoyal Observatory, Greenwich, still disposable. 
At the Eoyal Observatory, Greenwich, still disposable. 
At the Royal Observatory, Greenwich, still disposable. 
To the Government of Austria. 
At the Royal Observatory, Greenwich, still disposable. 
To the Academie des Sciences of Paris. 
At the Royal Observatory, Greenwich, still disposable. 
To Joseph Whitworth, Esq. 
At the Royal Observatory, Greenwich, still disposable. 
These have never been the property of the British Government. 
In addition to these there are, — No. 75, an undivided bar, marked by mistake : Nos. 76, 
77, 78, one-foot end-bars; Nos. 79, 80, six-inch end bars: and Nos. 81, 82, three-inch 
end-bars: intended for secondary comparison at the Exchequer or other offices, but at 
present lodged at the Eoyal Observatory. 
The Documents of every kind, relating to the Standard Commissions and the prepa- 
ration of Standards, are preserved at the Eoyal Observatory, Green-wich. 
1857, April 8. G. B. AlRY. 
4 Y 
MDCCCLVII. 
