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_APPENDIX 3.3.2
"Drosophila should be exposed and genetic effocts studics.
These studios should be done immediately after oxposure wees
Because of the differenca in relative efficiency of neutrons and
gamma rays for the production of (dominant lethals and recessive
lethals) it should be possible to find the proportion of fast
neutrons to gamma rays at the point of exposure.
University of Chicago
Froposol of Dr. Franklin C. McLean
The insect species that the NME project, M-11, proposes to
use are not known at this time.
Capt. Draveger's group at the
Neval Medical Research Institute have devoted much thought to, and
have had experience with conteincrs which oro suitable for exposure
of small material of this sort,
<A drawing of the containers used
in previous atomic tests is attached.
Capt. Dracger will comment
on the problems peculiar to this sort of study.
APPENDIX 3.3.3,
"Dr. Conger suggests tests on tho offect of bomb irradintion
on tradescantia chromosomes,
This could demonstrate whethur
biological cffects arc predominantly from gamma rays, or from
hoavy particles (neutrons).
Tho approximato radistion lovels to
bo tested are from 20 - €00 r xeray oquivalont effoct.....
Plants
would be placed at various distances,.... and collected within 2224 hoursS..e. Simultancous exposures would be made of control plrnts
to a burst of x-rays, or gamma rays, at a rate in excess of 200 r/
minute...
Noed facilitivs for koening plants in geod condition
until they could bo pleced (for expourc).... We would like to study
as many as several hundred plants in pots .....
Infloroscences
could be put in viels in differont locations .... (these) would
have to bo available for analysis a few hours after the blast,
Equipvment required:
Small laboratory space,
usual glassware for
microscopic study, microscope.
Oak Ridge Hational Laboratory
Letter of Alexander Hollaender
(Continued on next page)
APPE™DIXES :
Beaded
3.3.5
y=) ey,