Ask the Scholar
Page 2 of 2
I can add historical knowledge about this page.
Page image
OCR
May 26th,1930.
Dr. James E. Ives,
Treasury Department,
United States Public Health Service,
Room 1-123 "C" Bldg.,
16th Seventh St. S.W.
Wash. D.C.
Dear Dr. Ives:
In answer to your letter of May 23rd, I am glad
to advise you that we manufacture several different grades of
luminous material. The only difference in these various grades
is the amount of radio-active materials they contain. The base
material in all instances, namely the phosphorescent zinc sulphide
is the same.
The radioactive paterial is incorporated with the
phosphorescent zinc sulphide by wetting the sulphide and adding
the radium, as the chloride or bromide, after which the radium is
fixed as a sulphate and the mixture dried and screened.
I trust that this gives you the information desired.
Sincerely yours,
Vice President
HHBarker:RH
Page data
- Page
- 2
- Source index
- 0
- Type
- document
- Media ID
- 0c05ea370bcfe8ba
- Size
- unknown
Document data
- ID
- 75725419
- Core
- doc
- Type
- document
DTO data
{
"id": "75725419",
"sourceUrl": "https://catalog.archives.gov/id/75725419",
"contentType": "document",
"title": "Letters Sent to Dr. James E. Ives, May 26, 1930",
"citationUrl": "https://catalog.archives.gov/id/75725419",
"collections": [
"Safety Light Collection",
"Records Related to Radium Dial Painters"
],
"iiifBase": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/SLC/Radium/SLC_0002136.jpg",
"thumbnailUrl": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/SLC/Radium/SLC_0002136.jpg",
"largeImageUrl": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/SLC/Radium/SLC_0002136.jpg",
"imageCount": 2,
"hasImages": true,
"source": "import",
"hasTranscription": false
}
Context sent to Scholar
Document identity
{
"localId": "75725419",
"label": "Letters Sent to Dr. James E. Ives, May 26, 1930",
"core": "doc",
"dtoType": "document",
"citationUrl": "https://catalog.archives.gov/id/75725419"
}
Document source metadata
{
"id": "75725419",
"sourceUrl": "https://catalog.archives.gov/id/75725419",
"contentType": "document",
"title": "Letters Sent to Dr. James E. Ives, May 26, 1930",
"citationUrl": "https://catalog.archives.gov/id/75725419",
"collections": [
"Safety Light Collection",
"Records Related to Radium Dial Painters"
],
"iiifBase": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/SLC/Radium/SLC_0002136.jpg",
"thumbnailUrl": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/SLC/Radium/SLC_0002136.jpg",
"largeImageUrl": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/SLC/Radium/SLC_0002136.jpg",
"imageCount": 2,
"hasImages": true,
"source": "import",
"hasTranscription": false
}
Document source extras
{
"url": "https://catalog.archives.gov/id/75725419",
"naId": 75725419,
"levelOfDescription": "fileUnit",
"recordType": "description",
"ocrSource": "nara-archive"
}
Page context
{
"seq": 2,
"pageIndex": 0,
"type": "document",
"url": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/SLC/Radium/SLC_0002136.pdf",
"mediaId": "0c05ea370bcfe8ba",
"ocrText": "May 26th,1930.\nDr. James E. Ives,\nTreasury Department,\nUnited States Public Health Service,\nRoom 1-123 \"C\" Bldg.,\n16th Seventh St. S.W.\nWash. D.C.\nDear Dr. Ives:\nIn answer to your letter of May 23rd, I am glad\nto advise you that we manufacture several different grades of\nluminous material. The only difference in these various grades\nis the amount of radio-active materials they contain. The base\nmaterial in all instances, namely the phosphorescent zinc sulphide\nis the same.\nThe radioactive paterial is incorporated with the\nphosphorescent zinc sulphide by wetting the sulphide and adding\nthe radium, as the chloride or bromide, after which the radium is\nfixed as a sulphate and the mixture dried and screened.\nI trust that this gives you the information desired.\nSincerely yours,\nVice President\nHHBarker:RH"
}