Ask the Scholar
Page 1 of 2
I can add historical knowledge about this page.
Page image
OCR
UNIVERSITY OF MISSOURI
COLUMBIA
DEPARTMENT OF CHEMISTRY
October 16, 1928
Mr. H. H. Barker
United States Radium Corporation
535 Pearl Street
.
New York City, New York
will
My dear Howard:
I sent on yesterday the last installment of our paper,
but I have gone over all of it this morning and wish to suggest one or two
changes.
In the first place, we ought to secure a photograph
showing the set-up for gamma ray measurements.
Secondly, I hope that you will add to the data on Table I.
In Table II, you called attention to the exponents. The exponents there givan
have the minus sign omitted from them to indicate that the values in the
table have already been multiplied by 102 or 104 as the case may be.
I
think this is the usual way of doing. It seems to ma that the last sentence
on page 4 of the last installment, now on page 19 when the pages ore numbered
consecutively, should be modified. It now reads: "Our experiments then force
us to the conclusion that the scintillation method dalls far short of the
electroscopic method for detecting radium in expired air'from living persons."
I propose as a substitute then for it: "These considerations make us rather
skeptical about the reliability of the scintillation method of detecting radon
in the expired air of subjects suspected of radium poisoning."
On page 5 of the first installment, now page 7, the
literature references should be given for the three types of electroscopes
used. These references are as follows:
1. Hess, V. F., Phys. Z., 14, 1135, (1913)
2. Schmidt, H. W., Phys. Z., 6, 561, (1905)
3. Lind, S. C., Jour. Ind. Eng. Chemistry, 7. 406, (1915)
12, 469, (1920)
If there are any other points that you would like to ha ve
some changes made on, please do not hesitate to say so, and let us use all
haste now to get this paper in print.
Sincerely yours,
Herman Schlendt
Herman Schlundt.
HS
Page data
- Page
- 1
- Source index
- 0
- Type
- photo
- Media ID
- a167cb585a91a6c7
- Size
- unknown
Document data
- ID
- 75723240
- Core
- doc
- Type
- document
DTO data
{
"id": "75723240",
"sourceUrl": "https://catalog.archives.gov/id/75723240",
"contentType": "document",
"title": "Letters Received to H.H. Barker, October 16, 1928",
"citationUrl": "https://catalog.archives.gov/id/75723240",
"collections": [
"Safety Light Collection",
"Records Related to Radium Dial Painters"
],
"iiifBase": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/SLC/Radium/SLC_0001475.jpg",
"thumbnailUrl": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/SLC/Radium/SLC_0001475.jpg",
"largeImageUrl": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/SLC/Radium/SLC_0001475.jpg",
"imageCount": 2,
"hasImages": true,
"source": "import",
"hasTranscription": false
}
Context sent to Scholar
Document identity
{
"localId": "75723240",
"label": "Letters Received to H.H. Barker, October 16, 1928",
"core": "doc",
"dtoType": "document",
"citationUrl": "https://catalog.archives.gov/id/75723240"
}
Document source metadata
{
"id": "75723240",
"sourceUrl": "https://catalog.archives.gov/id/75723240",
"contentType": "document",
"title": "Letters Received to H.H. Barker, October 16, 1928",
"citationUrl": "https://catalog.archives.gov/id/75723240",
"collections": [
"Safety Light Collection",
"Records Related to Radium Dial Painters"
],
"iiifBase": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/SLC/Radium/SLC_0001475.jpg",
"thumbnailUrl": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/SLC/Radium/SLC_0001475.jpg",
"largeImageUrl": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/SLC/Radium/SLC_0001475.jpg",
"imageCount": 2,
"hasImages": true,
"source": "import",
"hasTranscription": false
}
Document source extras
{
"url": "https://catalog.archives.gov/id/75723240",
"naId": 75723240,
"levelOfDescription": "fileUnit",
"recordType": "description",
"ocrSource": "nara-archive"
}
Page context
{
"seq": 1,
"pageIndex": 0,
"type": "photo",
"url": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/SLC/Radium/SLC_0001475.jpg",
"mediaId": "a167cb585a91a6c7",
"ocrText": "UNIVERSITY OF MISSOURI\nCOLUMBIA\nDEPARTMENT OF CHEMISTRY\nOctober 16, 1928\nMr. H. H. Barker\nUnited States Radium Corporation\n535 Pearl Street\n.\nNew York City, New York\nwill\nMy dear Howard:\nI sent on yesterday the last installment of our paper,\nbut I have gone over all of it this morning and wish to suggest one or two\nchanges.\nIn the first place, we ought to secure a photograph\nshowing the set-up for gamma ray measurements.\nSecondly, I hope that you will add to the data on Table I.\nIn Table II, you called attention to the exponents. The exponents there givan\nhave the minus sign omitted from them to indicate that the values in the\ntable have already been multiplied by 102 or 104 as the case may be.\nI\nthink this is the usual way of doing. It seems to ma that the last sentence\non page 4 of the last installment, now on page 19 when the pages ore numbered\nconsecutively, should be modified. It now reads: \"Our experiments then force\nus to the conclusion that the scintillation method dalls far short of the\nelectroscopic method for detecting radium in expired air'from living persons.\"\nI propose as a substitute then for it: \"These considerations make us rather\nskeptical about the reliability of the scintillation method of detecting radon\nin the expired air of subjects suspected of radium poisoning.\"\nOn page 5 of the first installment, now page 7, the\nliterature references should be given for the three types of electroscopes\nused. These references are as follows:\n1. Hess, V. F., Phys. Z., 14, 1135, (1913)\n2. Schmidt, H. W., Phys. Z., 6, 561, (1905)\n3. Lind, S. C., Jour. Ind. Eng. Chemistry, 7. 406, (1915)\n12, 469, (1920)\nIf there are any other points that you would like to ha ve\nsome changes made on, please do not hesitate to say so, and let us use all\nhaste now to get this paper in print.\nSincerely yours,\nHerman Schlendt\nHerman Schlundt.\nHS"
}