ScienceJohn Michels (Journalist) 1935 |
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Page 212
... known to be able to pass through a meter and a half of water or 16 cm ( about 6 inches ) of lead before being reduced to a half per cent . , or one two - hun- dredth part , of their initial strength . These rays were known , too , to ...
... known to be able to pass through a meter and a half of water or 16 cm ( about 6 inches ) of lead before being reduced to a half per cent . , or one two - hun- dredth part , of their initial strength . These rays were known , too , to ...
Page 451
... known species in na- ture differing chiefly by an inversion are two species of Drosophila , and though their hybrid is sterile as expected , that sterility is evidenced by degeneracy of the reproductive system at a time too early for ...
... known species in na- ture differing chiefly by an inversion are two species of Drosophila , and though their hybrid is sterile as expected , that sterility is evidenced by degeneracy of the reproductive system at a time too early for ...
Page
... known as fre- " This quency modulation , " Major Armstrong states . method of modulation has been known for over twenty years , but the hitherto unsurmounted difficulties due to distortion and other troubles in both transmitter and ...
... known as fre- " This quency modulation , " Major Armstrong states . method of modulation has been known for over twenty years , but the hitherto unsurmounted difficulties due to distortion and other troubles in both transmitter and ...
Contents
DANIELS F Photons in Chemistry and Biology 523 | 18 |
Dixon Roland Burrage E A HOOTON 166 | 39 |
ALEXANDER J Enzymes | 44 |
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