ScienceJohn Michels (Journalist) 1946 |
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Стр. 318
... field work is again a possibility , biolo- gists , botanists , geologists , and zoologists will want to secure a copy of the latest Turtox edition of Biological field work . This annual list of field stations and sum- mer workshops ...
... field work is again a possibility , biolo- gists , botanists , geologists , and zoologists will want to secure a copy of the latest Turtox edition of Biological field work . This annual list of field stations and sum- mer workshops ...
Стр. 367
... field polarizer , showing halves of the field polarized at right angles to each other , and two eyepiece analyzers , each of which can be aligned with one - half of the polar- izer field . The B & L CTA Microscope has inclined binocular ...
... field polarizer , showing halves of the field polarized at right angles to each other , and two eyepiece analyzers , each of which can be aligned with one - half of the polar- izer field . The B & L CTA Microscope has inclined binocular ...
Стр. 625
... field courses in geology are offered , includ- ing an elementary course in field methods involving the preparation of a geologic map and a comprehen- sive report on a selected area . A second course , desig- nated " Field Problems in ...
... field courses in geology are offered , includ- ing an elementary course in field methods involving the preparation of a geologic map and a comprehen- sive report on a selected area . A second course , desig- nated " Field Problems in ...
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