ScienceJohn Michels (Journalist) 1946 |
From inside the book
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Page 246
... determined by measurements with a Beckman spectrophotometer are shown in Fig . 1. Seven indi- viduals , ranging in age from 22 to 38 years , fixated this filtered source at a distance of 30 cm . for five minutes with the left eye while ...
... determined by measurements with a Beckman spectrophotometer are shown in Fig . 1. Seven indi- viduals , ranging in age from 22 to 38 years , fixated this filtered source at a distance of 30 cm . for five minutes with the left eye while ...
Page 426
... determined by the speed of immersion and withdrawal , and can be varied accordingly . The silver remains soft and smooth and can be chlorided and insulated with shellac if desired . The great advantage of tapered silver electrodes is ...
... determined by the speed of immersion and withdrawal , and can be varied accordingly . The silver remains soft and smooth and can be chlorided and insulated with shellac if desired . The great advantage of tapered silver electrodes is ...
Page 598
... determined in that part of the film receiving a single exposure , and the upper curve representing the density determined in the part of the film receiving the two ex- posures . In employing the average of the densities obtained for ...
... determined in that part of the film receiving a single exposure , and the upper curve representing the density determined in the part of the film receiving the two ex- posures . In employing the average of the densities obtained for ...
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