The effect of X-rays on the length of life of Tribolium confusum

✍ Scribed by Davey, Wheeler P.

• Publisher: John Wiley and Sons
• Year: 1917
• Tongue: English
• Weight: 943 KB
• Volume: 22
• Category: Article
• ISSN: 0022-104X
• DOI: 10.1002/jez.1400220305

✦ Synopsis

A great deal of work is reported in the literature on the effect of X-rays on various forms of animal life. A study of this literature shows that, interesting though the results may be, it is with few exceptions, difficult to duplicate the experiments because the physical data relating to the dosage have been so incompletely given. Excluding work on human beings, the following work may be mentioned.

Hastings, Beckton and Weddl found that the hatching of silkworm eggs waa accelerated by X-rays (dose not given) and that the second generation was less fertile. Bordier2 X-rayed six silkworms, giving them a dose of 7 to 8 H,3 at some unknown penetration. He found an increased restlessness and smaller size. The cocoon was only half size, and the moth did not emerge. Hasebroeck4 was able to kill caterpillars of Charaxes (dose not given), but those of Vanessa urticae after being X-rayed an unknown amount developed into butterflies which were unable