Science: v.1-v.219Moses King, 1959 |
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Стр. 903
... animal species that normally increases at a rate of 1.5 when subjected to an intensive control program that destroys or removes 90 percent of the population ( i ) of both sexes , or ( ii ) of females , with return of all trapped males ...
... animal species that normally increases at a rate of 1.5 when subjected to an intensive control program that destroys or removes 90 percent of the population ( i ) of both sexes , or ( ii ) of females , with return of all trapped males ...
Стр. 1260
... animal germ plasm presently used in North America ( H. H. Stonaker , Colorado State Univer- sity ) ; untapped sources of animal germ plasm ( R. W. Phillips , U.S. Depart- ment of Agriculture , Washington , Washington , D.C. ) . The ...
... animal germ plasm presently used in North America ( H. H. Stonaker , Colorado State Univer- sity ) ; untapped sources of animal germ plasm ( R. W. Phillips , U.S. Depart- ment of Agriculture , Washington , Washington , D.C. ) . The ...
Стр. 1714
... Animal Breeders The charter meeting of the Labora- tory Animal Breeders Association was held in Chicago on 2 December 1958 . A large number of the breeders of the country attended . The membership , which now numbers 56 , includes most ...
... Animal Breeders The charter meeting of the Labora- tory Animal Breeders Association was held in Chicago on 2 December 1958 . A large number of the breeders of the country attended . The membership , which now numbers 56 , includes most ...
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Editorial New Garb | 829 |
Science In the News Khrushchev Sees Aspects of American Science House Committee Questions Adequacy | 851 |
Departments Letters 826 | 881 |
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