ON THE USE OF INDEX NUMBERS. ° 873 
British Goods—cont. 
| 1884 
Value of Exports) Index Numbers 
Aver, | Soop) || Aver. | Value of 
Articles Pri In rie fe | 
vere million goes Price | Exports Value | Price |Quan- 
£'s NO. ! : tity 
= , / — _| 
Tron, hoop ......... ton| 7°77. ‘67. 3 7-270 60h} “V2 “94 2 
me ttinned ..it.. » | Lt-470. 4:71.| 20 || 16-457. AT5. 1.9205) |seosOdi ae 
SCAB 203..252% » | 12:97. 4-62.; 19 || 12-177. 458.| 19 | -94| 20 
», steel, wrght. ,, | 19-100. 140.| 6 || 19-802. 1:18. 5 1-04 5 
a pe Es, 55 ee TOL. 58. 2 || 36°377. “40. 2 85 | 2 
Copper ingots ...cwt.| 3°38/. 1:14. 5 2-941 1:05. 4 ‘87 5 
» yellow 
metal... ,, 2°991. 1:18. 5 2°731. 1:06. 4 “91 4 
»  otherkinds ,, 3°87. 1:24, 5 3°527. 1-46. 6 ‘91 7 
IERRS Baten puncdvs ase a 4-47]. 43.) 2 4°241, “45, 2 “95 2 
3 ton} 14-077. ‘55. 2 || 12-587. ‘42. 2 90} 2 
C2 eS Ree ee ewt.) 4°882. “82. 2 4271, ‘47. 2 cS le). me 
PREG re sthoctt ccs » | 13°89s. ‘10.| — |} 13°59s. 10.; — ‘98 | — 
Oil-seed............ gal.| 185s. 1-86. 8 1:83s. 1:47. 6 99 | 6 
IEAICT Is 3555 iva 0 = 30% ewt.| 27157. 1:28. 5 2-051. 1°37. 6 ‘95 | 6 
St Ce eS ton} 12°84s. “65. Se eos: ‘61 3 1:01 3 
Silk, Brd. stfs. ...yd.J 3°26s. 25s le, @e 3° 26s. i lcabil 5 L000) ee 
1) Oe SR eae cwt.| 22°96s. 45.| 2 || 22°99s. ‘55 2 1:00 2 
BPATIUS. 2702.20 -+- 0+ gal.| 5°93s. “oly WG 615s. 81 3 1:04 3 
BO Soc cwaseceess. ewt.| 21°40s. 1:24.| 5 Li-7%8: i Les la | 5 ‘Slav mG 
DMG ashi 5. dcc0cccs lb.| 12°71d. 1:03.| 4} 10:94d. 83 3 “86 3 
U/l », | 23°41d. 3:27.| 14 || 23-78d. 3°89.| 16 1:02 | 16 
MEECIOLD: .....- 25: yd.) 38°30d. 7:35.| 31 || 41:-42d.) °7:93.| 33 108 31 
aeetiannels...... » | 14°82d. *B4.; 3 || 13:98d. “QI 4 “94 4 
soli aa ui 994d. 769.| 32 9-64d. 8°72.| 36 ‘97 | 38 
marcarpets y..3.). » | 28:24d. 1:26. 5 || 26-16d. 1:26 5 "93 6 
| pte 
Total specified | iat | } 
— is ome 170-14. , 706 — 163-87. | 683 — | 711 
Total unenume- ‘ f 
cd dol } — 69:66. | 294 — 69:13. | 288 — | 299 
£239°80. | 1:000 a=) 285 00) "ort — |1-010 
The Forth Bridge Works. By ANDREW 8S. Biccart, C.F. 
[PLATE VI.] 
[A communication ordered by the General Committee to be printed in extenso 
among the Reports. ] 
‘Works of exceptional magnitude, and more especially those in which the 
difficulties in the way of their accomplishment are in any degree propor- 
tionate to their size, must of necessity be of interest to this Association, 
constituted as it is to assist, and in its own way act as a beacon to all 
an search of true knowledge. 
While the difficulties met with in preparing for and founding the piers 
