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Test No. 4 - Samples of the Standard Chemical Company received November
18th, 1918.
Readings taken December 5th, 1918.
Luma, D - 18.7 Cm.
11 B - 22.5 Cm.
11 A - 30 Cm.
The large jump from B to A occurs in all readings of
this material taken so far. It may also be detected by
the eye with the aid of the machine.
Test No. 5 - Readings taken December 5th, 1918. Material received from
Cold Light Company, November 30th, 1918.
No. - 13 - 32.7 Cm.
No. 7 - 55 Cm.
No. 11 - 36.5 Cm.
No. 5 - 58 Cm.
No. 9 - 48.5 Cm.
No. 4 - 63 Cm.
A special test of the application material #10 was
carried out A sample of this material of the same age
and quality as that being tested in our test No. 3 was
applied in regaard to determine the drop in luminousity
caused by the paste. This material read 24 Cm. before
being applied. After the application, it read 48 or 52
Cm. according to the kind of paste which was used. One
sample was applied with a special paste made as follow3:
about 75 00 of Rosemarie oil was added to 300 CC of
texine. In this mixture, special clear Demar gum was
desolved until the proper paste was obtained. This
paste when applied gave a reading of 48 Cm. Paste No.31
gave a reading of 52 Cm. Had material used been of a
lower grade, the difference caused by the paste woùld
have been greater.
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"ocrText": "-2-\nTest No. 4 - Samples of the Standard Chemical Company received November\n18th, 1918.\nReadings taken December 5th, 1918.\nLuma, D - 18.7 Cm.\n11 B - 22.5 Cm.\n11 A - 30 Cm.\nThe large jump from B to A occurs in all readings of\nthis material taken so far. It may also be detected by\nthe eye with the aid of the machine.\nTest No. 5 - Readings taken December 5th, 1918. Material received from\nCold Light Company, November 30th, 1918.\nNo. - 13 - 32.7 Cm.\nNo. 7 - 55 Cm.\nNo. 11 - 36.5 Cm.\nNo. 5 - 58 Cm.\nNo. 9 - 48.5 Cm.\nNo. 4 - 63 Cm.\nA special test of the application material #10 was\ncarried out A sample of this material of the same age\nand quality as that being tested in our test No. 3 was\napplied in regaard to determine the drop in luminousity\ncaused by the paste. This material read 24 Cm. before\nbeing applied. After the application, it read 48 or 52\nCm. according to the kind of paste which was used. One\nsample was applied with a special paste made as follow3:\nabout 75 00 of Rosemarie oil was added to 300 CC of\ntexine. In this mixture, special clear Demar gum was\ndesolved until the proper paste was obtained. This\npaste when applied gave a reading of 48 Cm. Paste No.31\ngave a reading of 52 Cm. Had material used been of a\nlower grade, the difference caused by the paste woùld\nhave been greater."
}