ScienceJohn Michels (Journalist) 1956 |
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Стр. 445
... samples from the site include two woody samples run by Libby from the Denbigh culture layer that gave ages of 3509 ± 230 years ( C - 792 ) and 4658 ± 220 ( C - 793 ) ( 17 ) . The possibility of contamination of the Denbigh flint layer ...
... samples from the site include two woody samples run by Libby from the Denbigh culture layer that gave ages of 3509 ± 230 years ( C - 792 ) and 4658 ± 220 ( C - 793 ) ( 17 ) . The possibility of contamination of the Denbigh flint layer ...
Стр. 801
... sampling locality . The fine plant debris occurs as lenses and streaks in the stratified gravels and silts . The samples were collected from these beds of plant debris . The results obtained from palynological studies of two of the samples ...
... sampling locality . The fine plant debris occurs as lenses and streaks in the stratified gravels and silts . The samples were collected from these beds of plant debris . The results obtained from palynological studies of two of the samples ...
Стр. 1072
... samples of a marine mud extracted by boiling with different amounts of Na2SO , added to each 50 - mg sample in 10 ml of phosphate - ci- trate buffer at pH 5.0 . beyond , the level of about 20 mg of sulfite per 10 ml of buffer . 3 In ...
... samples of a marine mud extracted by boiling with different amounts of Na2SO , added to each 50 - mg sample in 10 ml of phosphate - ci- trate buffer at pH 5.0 . beyond , the level of about 20 mg of sulfite per 10 ml of buffer . 3 In ...
Содержание
Effect of ergot drugs on Betta splendens | 5 |
AAASRosenthal cancer prize | 20 |
New scheme for performance of osmotic | 43 |
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