Deuembor 11, 1945

I suppoDe you haver r6;:xI the gaper by :~'0038 and daBuy that sppsrrd  in

the last issue of Saienoa. I mat 9onf'sss I fin3 it a little Aiffiault to uader-
stan3 hon the2 a&n state that "tbam ia PQ eridanorr for a dfifurs c;lrtopfatmicr
hereditary sptem" or that " the derelopmnf of sbpie non-hereditary Jgfoplasaio
protrlns 1nCo ht)r&ltary trystems ls entirely sithart exlperimental proof." hpgar-
sntly tbe fallom not anly do not tea3 t)us lltersturo but la Mdltion fail to
investiqeta the papera cited In those pa22ta they 30 cetel. A@ finally thy mi.-
understand or do not read ths papers they cite, 0.g. in the 3ase of YIarahvk am
-2alkor whose data oo-ald be UBOB to explain pneumooooous oranoformation in term
of ~&Wle%r-3ytophSlab lator2fiae8e bat is, it seem to me, inadequate of

QOlogllb Om'' 8 kil le F 8 t Or r

Sinasrely yours,

3, Spiegelrnan