000 00374 am a2200121 a 4500
245 1 _aStudies in plant hybrids
_bThe spermatogenesis of hybrid cotton
260 _aNew York
_c1903
300 _a133-172 p.
100 1 _aCannon, W.A.
942 _2udc
_cB
440 _aPlant, Cotton Contributions from the Department of Botany of Columbia University No. 202
901 _aS47138
999 _c102962
_d102962