161 
5) 
EE Time Original quantity Diffusion rest and constant 
- Ere ‚Constant 
Sy | | | (mean) 
= minutes) 1 2 3 4 5 Gy ine ia 
om 
59.6 843 892.8 — 699.6 234.0 309.0 282.1 | 276.2 
1.110 | 1.208 | 1.093 | 1.172 | 1.146 
61.9 981 ‘ie 799.2 | 680.01) 256.8 | 355.2 | 327.0 | 309.3 
PelO25 GAST PLO2 1 2252 1.199 
62.2 741 1079.5 -— 669.2!) 297.3 | 392.0 352.8 | 364.3 
1.171 | 1.254 | 1.180 | 1.114 | 1.180 
62.4 | 530 1038.5 | 748.0 647.21) 340.2 | 423.8 | 389.2 | 389.7 
1.085 | 1.263 | 1.150 | 1.161 1.165 
62.6 111 | 991.7 | 712.0 | 615.7"); 280.2 | 371.2 | 335.5 | 329.2 
1.150 | 1.201 | 1.125 | 1.203 | 1.170 
63.2 °%|, (568 en 852.8 | 736.7')) 364.2 | 496.3 | 435.5 | 433.7 
| 1.204 | 1.079 1.141 | 1.173 | 1.149 
GRO th) 55725 1106.6 | 783.9| — | 334.2 | 434.7 | 385.3) — 
ean | PaO teat B19, \\ 2-2 AR 205 
69.9 | 688 | 798.3) 568.3 - 222.2 286.6 263.4 | 254.4 
1.225 1.379 1.233 | 1.365 | 1.300 
70.2 | 521 | 843.1 | 614.8 703.9 258.3 | 354.8 300.0 | 315.0 
1.377 | 1.225 | 1.427 | 1.262 | 1.323 
70.2 540: | = | 678.2 | 761.5.) - — | 384.8 | 935.5 | 330.7 | 
| prs Lef 23341 S065 NL: 3BA. | 17308 
oe +e GBA 052-7 |) =. 831.9: | 28027 | vt 11-320.9:| 926,8. 
| 1.335 | — | 1.385 | 1.446 | 1.389 
10.3 304 1183.7 SAN AOT 34 562.04 4a 75 | yi 
| 15342 NEST ASIO A 1.321 
10.7 461. -|1097.9 | 788.7 | 880.5 | 337.3 |’ — 404,0 | 410.8 
1.468 | — |1:38i | 1.329 | 1.393 
10.7 550.5 1196.5 | 861.3 — | 347.7 | 463.8 | 411.3 | 411.0 | 
1.413 | 1.422 | 1.411 | 1.441 | 1.422 
vj BP 574.5 |111.2| — | 583.5 | 207.8 | 212.6 | 240.9 | — 
1.369 | 1.449 | 1.439 | — 1.419 
continues to exist also at other temperatures, then on substitution 
of the values of D found by us in equation 3 values for a will be 
found, which may diverge a few percentages from the real ones. 
LI 
Proceedings Royal Acad. Amsterdam. Vol. XIX. 
