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72
Memory
C
L WL Δ Q
1246 889 357 31.6
1231 885 346 30.2
1273 1039 234 19.7
1319 925 394 31.9
1125 971 154 14.8
1275 891 384 32.3
1322 857 465 37.6
1170 880 290 26.7
m1245 917 328 28.1
P.E.m=1.8


The combination of the three average values of Q, which are stated in per cents and lie close to each other, for the 26 tests gives Q=27.8 (P.E.m=1.4)


VI. Six days26 tests, 10 at the time A, 8 at B, 8 at C.
A
L WL Δ Q
1076 868 208 21.0
992 710 282 31.1
1082 756 326 32.7
1260 973 287 24.4
1032 864 168 17.7
1010 955 55 5.9
1197 818 379 34.1
1199 828 371 33.3
943 697 246 28.7
1105 868 237 23.2
m1090 834 260 25.2
P.E.m=1.9