000 00287 a2200121 4500
080 _a575.1
_bA 466 G
245 1 _aGenetics
_cby E. Altenburg
260 _aLondon
_bConstable and Company Ltd.
_c1950
650 _aGenetics
100 1 _aAltenburg, E.
_d
300 _a452 p.
901 _a74374
999 _c30794
_d30794