380 RELATIVE ATTRACTIONS OF 
DR. DALTON’S TABLE, 
SHOWING THE EXPANSION OF AIR, AND THE ELASTIC FORCE 
OF AQUEOUS VAPOUR, AT DIFFERENT TEMPERATURES, 
Utmost | Weight of Utmost | Weight of 
Volume | force of |100 cubicin. Volume | force of |100cubic in. 
Temp.| ofair. | aqueous | of aqueous |/Temp.| ofair. | aqueous | of aqueous 
vapour. | vapour. vapour. | vapour. 
in, of Mer| grain. in. of Mer] grain. 
28°| 420 53°| 501 4 354 
20 428 54 502 56 366 
10 438 55 503 08 378 
0 448 | .08 56 504 09 384 
10 458 | .12 57 505 61 396 
20 468 | .17 58 506 62 402 
30 478 | .24 59 507 64 414 
— -— — 60 508 : 420 
32 480 | .26 178 61 509 d 432 
33 481 | .27 184 62 510 F 444 
34 482 | .28 191 63 511 . 456 
35 483 | .29 197 64 512 : A68 
36 484 | .30 -203 65 513 A 480 
37 485 | 31 -209 66 514 ° A492 
38 486 | .32 216 67 515 : 009 
39 487 | .33 222 68 516 : 021 
40 488 | .34 229 69 517 : 039 
41 489 | 35 235 70 518 051 
42 490 | .37 245 71 519 ; 569 
43 491 | .38 255 72 520 : 580 
pa: 492 | .40 .267 rhe 521 - 598 
45,| 493 |, .41 | 2/0 | (4). 5224 | 610 
46 494 | 43 284 75 523 5 627 
47 495 | .44 293 76 524 : 645 
48 496 | .46 303 an 525 : 662 
49 497 | 47 313 78 526 : 680 
50 498 | 49 323 79 527 . -700 
51 499 | .50 329 80 | 528 | l. 721 
