RT Journal
T1 FOreign letters
JF Journal of the American Medical Association
JO Journal of the American Medical Association
YR 1936
FD October 24
VO 107
IS 17
SP 1397
OP 1402
DO 10.1001/jama.1936.02770430047020
UL http://dx.doi.org/10.1001/jama.1936.02770430047020
AB LONDON 
    (From Our Regular Correspondent)Sept. 8, 1936.New Test for Estimating the Toxicity of Mineral Oils 
    The Manchester Committee on Cancer has just issued its report for 1935. Dr. C. C. Twort, director of the Cancer Research Laboratories, states that since the publication of the last report a new test has been devised for assessing the toxicity of mineral oils. Having found a simple method by which the approximate carcinogenicity of a mineral oil could be rapidly ascertained—by examination of its refractive—they investigated how the animal cells reacted to oils and this brought the new test to light. The test shows not only the probable carcinogenicity of an oil but also its probable power of causing dermatitis. It is performed by injecting a few drops of oil into an animal and recovering it for examination as to its physical characteristics. The basic principle of the test is that if