Graying of the hair cecurred in anirals in definite relntion to the
intensity of the axpusure as one mivat expect from deta tn the literctore.




A mmemary of observetions is civen om “able 3.

Timers cccurred in the meriory glend region in many expoved mice, as
indicated in Table 1.

This was unexpected us, according to Ur. Lorenz,

memmostuners secu ‘ute 23 thea ul wise oO: Unis cirain exposed “oO

GommeTOYS » an’ ewtanecustamors are very rare.

Section: of theso

turot: will be sent to Mrs. Shiels Varren aad a. Lorena.


mention ts whowicr these tumors could be caused by asutron miclacr
reactiana tue to come olomont measent in the accessory glands of the
skin or in the memary ducts,

Uther tepes of tumor are not apmercnt

thon fer
> oO


The %Ray controls have boen recaived only recently from Te. J, Bond,
ue Se Naval Rysearch Loboratery, san Yrancisco.

aa these uisu vera

set up later an’? reared Im the United states, they are not perfact
controls but ill verve for tontative orientation as te the telative
offleieney of newirons ond Xerzage in producing crantng, catareets,
teukenin, on? tmor-.

is prrmatore to draw final conclusions, Lut the *nllowing zaner1

consLiovations arm subittied:


a) Atomic Leab explosions can be utiliserl for bavic seientific and
anrlied studies which in neny respects are sunarior to the laborctory
experinents performed tims far, fe Ses certain -ajor foetorn are

ideally ‘dentiea® and unilorm, cuca us tneaxpocure scurte, the
neriod of obterration, on] other verieble: reicted te time ond


Heutron expocuce of mumcals on a “arge ceale in bareiy

feasible vtharvtse.


nos anew



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