Studies on the heredity of cancer in mice / by J.A. Murray.

  • Murray, J. A. (John Andrew)
Date:
1914
Catalogue details

Licence: In copyright

Credit: Studies on the heredity of cancer in mice / by J.A. Murray. Source: Wellcome Collection.

    12/14 page 76
    TABLE VIII Months 6- 9- 12- is- 18- 21- 24- Total in 1,000 female mice of all ages. Recent cancerous an¬ cestry . 3'4 9-8 22 '9 20-6 12*1 5-6 47 79-1 Remote cancerous an¬ cestry 2-2 9-6 3'4 137 I-I 7‘5 3'9 41-4 Here again, as in the first method of enumeration, the cancer cases are nearly twice as numerous in the group of recent, as in the group of remote, cancerous ancestry. The confirmatory results of these two methods of enumeration leave little doubt that the difference between the groups with recent and remote cancerous ancestry is a real one, and that a hereditary factor, the influence of which can be concentrated by selective mating, plays an important part in determining the frequency with which stocks of mice develop spontaneous malignant new growths. LITERATURE 1 Bashford, E. F., and Murray, J. A.—‘ The Incidence of Cancer of the Mamma in Female Mice of Known Age,’ Roy. Soc. Proc., B., 1909, lxxxi, 310. 2 Murray, J. A.—‘ Cancerous Ancestry and the Incidence of Cancer in Mice,’ Fourth Scientific Report of the Imperial Cancer Research Fund, London, 1911, p. 114. 3 Tyzzer, E. E.—* A Series of Spontaneous Tumours in Mice, with Observations on the Influence of Heredity on the Frequency of their Occurrence,’ Journ. Med. Research, 1907, xvii. 155, and Fifth Report of Cancer Commission of Harvard University, I9°9■
    digitised image 1
    digitised image 2
    digitised image 3