THE NEW NATIONAL STAND AED OE LENGTH, AND ITS PEINCIPAL COPIES. 679 
d. 
d. 
Bronze 1 
+2-08 
Bronze 23 
+2-21 
2 
-0-95 
24 
+ 3-02 
o 
O 
-2-28 
25 (redivided) 4-0'25 
4 
+ 4-63 
26 
+5-05 
5 
+ 0-52 
27 
+ 1-79 
6 
+2-58 
28 
(0-00) 
7 
+0-14 
29 
+ 4-60 
8 
+1-70 
30 
+ 3-24 
9 
+ 7-14 
31 
-0-34 
10 
-1-56 
32 
-0-36 
11 
+1-96 
33 
+0-71 
12 
+ 1-84 
34 
-0-25 
13 
+ 1-35 
35 
+0-47 
14 
+ 3-85 
36 
-0-75 
15 
-2-92 
37 
-0-62 
16 
+ 0-56 
38 
-1-33 
17 
-1-30 
39 
+1-21 
18 
-2-48 
40 
+ 0-07 
19 
-0-03 
Baily’s 
A 
-3-50 
20 
+ 0-55 
B 
+ 3-09 
21 
+ 1-86 
C 
+ 4-05 
22 
H-2-40 
Brass Bars. 
D 
+ 3-01 
(Brass 2 is a fundamental bar, whose value was obtained 
in a preceding Section. The 
Kew Bar was compared with Brass 2 and Bronze 28 : all the others with Bronze 28 only. 
The Flat Brass Scale 
appears to have been compared on Baily’s 
apparatus : all the 
others, 1 believe, with 
Mr. Sheepshanks’s apparatus.) 
Brass 1 . . . . 
d. 
+ 0-07 
d. 
Royal Astronomical Society’s Tubular +11'67 
2 . . . . 
+ 8-27 
Danish Tubular . 
. . . +12-01 
Flat Brass Scale. . 
- 0-12 
Simms’s Tubular 4 . 
. . . +13-88 
Kew Bar .... 
+ 1-54 
Baily’s Tubular 5 . 
. . . +19-42 
New Tubular Scale 
-10-27 
Copper Bars. 
(Donkin’s is in the last Section. Maudslays’ and May’s were compared with Bronze 12.) 
d. 
Donkin’s Copper +1-16 
Maudslays’ Copper 4-l’60 
May’s Alloy +4‘15 
4 T 2 
