May 22, 1811.—The following was the appropriation of ordnance determined upon for the siege:—
Cristoval Attack. South, or Castle Attack. 24 -pounders (brass) 12 24 -pounders (brass) 14 16 -pounders 4 10 -inch howitzers 2 10 -inch howitzers 2 8 -inch howitzers 4 8 -inch howitzers 4 20 22 In reserve: 24-pounders (brass) 4 Detail of men for siege artillery:—
1st Regt. Portuguese Artillery: officers and men 100 2nd Regt. Portuguese Artillery: officers and men 100 3rd Regt. Portuguese Artillery: officers and men 300 Royal Artillery: officers and men 110 610
| Cristoval Attack. | South, or Castle Attack. | ||||
|---|---|---|---|---|---|
| 24 | -pounders (brass) | 12 | 24 | -pounders (brass) | 14 |
| 16 | -pounders | 4 | 10 | -inch howitzers | 2 |
| 10 | -inch howitzers | 2 | 8 | -inch howitzers | 4 |
| 8 | -inch howitzers | 4 | |||
| 20 | 22 | ||||
| In reserve: 24-pounders (brass) 4 | |||||
| 1st Regt. Portuguese Artillery: officers and men | 100 |
| 2nd Regt. Portuguese Artillery: officers and men | 100 |
| 3rd Regt. Portuguese Artillery: officers and men | 300 |
| Royal Artillery: officers and men | 110 |
| 610 |
Many of these guns were replaced during the siege, as may be gathered from the following table:—
| 24-pounders. | 10-in. howitzers. | 8-in. howitzers. | ||
|---|---|---|---|---|
| Disabled by the fire of the enemy | 3 | ·· | 3 | |
| Disabled by the effects of their own fire | 15 | 2 | 1 | |
| Total | 18 | 2 | 4 | =24. |
The expenditure of ammunition during the siege was as follows:—
No. of rounds. 24-pr.
round
shot.24-pr.
grape
shot.16-pr.
round
shot.Shell. 10-in. 8-in. North, or San Cristoval Attack 5950 200 1134 62 989 South, or Castle Attack 8419 441 ·· 640 1090 Total 14369 641 1134 702 2079 N.B.—The totals given above, and in the first table (Table A), agree with those given by Sir J. Jones; but the details here are more minute. It was but natural that Sir J. Jones, being an Engineer officer, should devote more space and detail to the labours of his own corps; but his artillery details in most sieges in the Peninsula were obtained from Sir A. Dickson and Sir J. May, and generally agree with the MSS. of the former.
| No. of rounds. | 24-pr. round shot. | 24-pr. grape shot. | 16-pr. round shot. | Shell. | |
|---|---|---|---|---|---|
| 10-in. | 8-in. | ||||
| North, or San Cristoval Attack | 5950 | 200 | 1134 | 62 | 989 |
| South, or Castle Attack | 8419 | 441 | ·· | 640 | 1090 |
| Total | 14369 | 641 | 1134 | 702 | 2079 |
On the 10th June Lord Wellington determined on raising the siege.
On the night of the 30th May the trenches were opened on both attacks, and great progress was made. The whole of the guns for the batteries were also set in movement, with ammunition at the rate of 300 rounds per gun.