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doc#122 | each tube was then sealed off. |
doc#122 | the manifold and then allowed to distil |
doc#124 | epidemics. They then point out that |
doc#124 | this case, then , the military |
doc#125 | the tubes were then centrifuged at 1000 |
doc#125 | 1 hr and then were centrifuged at |
doc#125 | The cells were then washed three times |
doc#125 | unstained strips were then marked, using |
doc#125 | . They were then centrifuged at 59,780 |
doc#125 | . Ultracentrifugation was then carried out in |
doc#125 | ml fractions were then drawn off with |
doc#126 | willow catkins, then , provide their |
doc#126 | and it is then that young queens |
doc#126 | . The temperature then is still very |
doc#127 | under pressure and then were injected with |
doc#127 | vein, and then by injecting the |
doc#128 | possible. He then applied this principle |
doc#129 | g, for then any point on |
doc#129 | the case, then an arbitrary pencil |
doc#129 | can intersect, then the regulus must |