................................................
Sure, here's a version with improved grammar and an organized steam pressure table.

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[...] number corresponding to this, take the multiplier opposite to it and multiply the full pressure of the steam per square inch as it inters the cylinder by it. 

TABLE OF MULTIPLIERS BY WHICH TO FIND THE MEAN PRESSURE OF STEAM AT VARIOUS POINTS OF CUT-OFF:
| Expansion | Multiplier | Expansion | Multiplier | Expansion | Multiplier |
|-----------|------------|-----------|------------|-----------|------------|
| 1.0       | 1.000      | 3.4       | .654       | 5.8       | .479       |
| 1.1       | .995       | 3.5       | .664       | 5.9       | .474       |
| 1.2       | .985       | 3.6       | .634       | 6.        | .470       |
| 1.3       | .971       | 3.7       | .624       | 6.1       | .466       |
| 1.4       | .955       | 3.8       | .615       | 6.2       | .462       |
| 1.5       | .937       | 3.9       | .605       | 6.3       | .458       |
| 1.6       | .919       | 4.        | .597       | 6.4       | .454       |
| 1.7       | .900       | 4.1       | .588       | 6.5       | .450       |
| 1.8       | .882       | 4.2       | .580       | 6.6       | .446       |
| 1.9       | .864       | 4.3       | .572       | 6.7       | .442       |
| 2.        | .847       | 4.4       | .564       | 6.8       | .438       |
| 2.1       | .830       | 4.5       | .556       | 6.9       | .434       |
| 2.2       | .813       | 4.6       | .549       | 7.        | .430       |
| 2.3       | .797       | 4.7       | .542       | 7.1       | .427       |
| 2.4       | .781       | 4.8       | .535       | 7.2       | .423       |
| 2.5       | .766       | 4.9       | .528       | 7.3       | .420       |
| 2.6       | .752       | 5.        | .522       | 7.4       | .417       |
| 2.7       | .738       | 5.1       | .516       | 7.5       | .414       |
| 2.8       | .725       | 5.2       | .510       | 7.6       | .411       |
| 2.9       | .712       | 5.3       | .504       | 7.7       | .408       |
| 3.        | .700       | 5.4       | .499       | 7.8       | .405       |
| 3.1       | .688       | 5.5       | .494       | 7.9       | .402       |
| 3.2       | .676       | 5.6       | .489       | 8.        | .399       |
| 3.3       | .665       | 5.7       | .484       |           |            |

[Page] 52

HAND-BOOK OF LAND AND MARINE ENGINES.