000 00604cam a2200157 a 4500
008 090619b xx j 000 1 eng
100 1 _aKummer, Anna Pederson, 1899-
245 1 0 _aWeed seedlings/ Anna Pederson Kummer. Drawings by the author.
260 _bUniversity of Chicago Press
_a[Chicago]
_c1951
300 _a435 p. ilus. 21 cm.
500 _a"The outgrowth of investigations made as partial fulfillment of the requirements for the degree of doctor of philosophy at the University of Chicago."
650 1 0 _aWeeds
_zUnited States
650 1 0 _aSeedlings
050 0 _aSB612 A2 K86
942 _cCG
999 _c9206
_d9206