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Test for padio-activity of Miss schaub.
The same kind of test was made on Miss Schaub.
The experimental results
are summarized in the following table:
1.
Natural drift of testing electroscope before test
0.01514
2.
Drift with Miss Schaub near testing electroscope
0.01445 d. pesed.
3.
Natural drift of testing electroscope after test
0.01445 " " "
4.
Average of natural drifts
0.01480 " " "
Again we note that the difference between the natural drift and the
drift on Miss Schaub is fully within the limit of experimental error, and is
negative, 0.01445 - 0.01480 = - 0.00035
Test for Radioactivity on Mrs. Larice
1.
Natural drift before
0.01445 d.p.sec.
2.
Drift with Miss Larice near testing electroscope
0.01512 11 "
"
3. Natural drift after test
0.01600 " " "
4. Average of natural drifts
0.01522 11 11
"
Difference 01512 - .01522 = - 0.0001
Test for Radioactivity on Mrs. Hussman
1.
Natural drift before test
0.01600 d.p.sec.
2.
Drift with Mrs. Hussman near instrument
0.01608 11 " "
3.
Natural drift after test
0.01397 11 11 "
The marked change in the natural drift is abnormal and exceeds the ex-
perimental error under normal conditions. We therefore requested that another
test be made. Unfortunately Mrs. Hussman had left the building after being told
to wait. The test on Mrs. Hussman we therefore consider unfinished, and we are
not in position to say whether or not she is radioactive.
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"ocrText": "Page - 4 -\nTest for padio-activity of Miss schaub.\nThe same kind of test was made on Miss Schaub.\nThe experimental results\nare summarized in the following table:\n1.\nNatural drift of testing electroscope before test\n0.01514\n2.\nDrift with Miss Schaub near testing electroscope\n0.01445 d. pesed.\n3.\nNatural drift of testing electroscope after test\n0.01445 \" \" \"\n4.\nAverage of natural drifts\n0.01480 \" \" \"\nAgain we note that the difference between the natural drift and the\ndrift on Miss Schaub is fully within the limit of experimental error, and is\nnegative, 0.01445 - 0.01480 = - 0.00035\nTest for Radioactivity on Mrs. Larice\n1.\nNatural drift before\n0.01445 d.p.sec.\n2.\nDrift with Miss Larice near testing electroscope\n0.01512 11 \"\n\"\n3. Natural drift after test\n0.01600 \" \" \"\n4. Average of natural drifts\n0.01522 11 11\n\"\nDifference 01512 - .01522 = - 0.0001\nTest for Radioactivity on Mrs. Hussman\n1.\nNatural drift before test\n0.01600 d.p.sec.\n2.\nDrift with Mrs. Hussman near instrument\n0.01608 11 \" \"\n3.\nNatural drift after test\n0.01397 11 11 \"\nThe marked change in the natural drift is abnormal and exceeds the ex-\nperimental error under normal conditions. We therefore requested that another\ntest be made. Unfortunately Mrs. Hussman had left the building after being told\nto wait. The test on Mrs. Hussman we therefore consider unfinished, and we are\nnot in position to say whether or not she is radioactive."
}