The Encyclopedia Americana: A Library of Universal Knowledge ...Encyclopedia Americana Corporation, 1924 |
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Zadetki 1–5 od 100
Stran 6
... passing through the single camera lens , between which and the plates was interposed a yellow - orange trans- parent light filter or screen for the purpose of reducing the strength of the blue rays . The three sensitive plates were ...
... passing through the single camera lens , between which and the plates was interposed a yellow - orange trans- parent light filter or screen for the purpose of reducing the strength of the blue rays . The three sensitive plates were ...
Stran 17
... passed through the test layer . in the case of the green coloring matter of plant leaves , the absorption band that corresponds to the photo- synthetic activity is in the red part of the spectrum . It is not possible to determine with ...
... passed through the test layer . in the case of the green coloring matter of plant leaves , the absorption band that corresponds to the photo- synthetic activity is in the red part of the spectrum . It is not possible to determine with ...
Stran 20
... passed through a window of rock crystal , the crystal not filtering out the ultra - violet rays has made it possible to pro- ject intense radiations and so produce very violent reactions from short exposures . careful management it is ...
... passed through a window of rock crystal , the crystal not filtering out the ultra - violet rays has made it possible to pro- ject intense radiations and so produce very violent reactions from short exposures . careful management it is ...
Stran 23
... passed to Greece in the 5th century , and her black stone image was carried to Rome in 204 B.C. Closely associated with her was Attis , again a divinity of nature's powers of reproduction . Bibliography.- History : Ramsay , ' His ...
... passed to Greece in the 5th century , and her black stone image was carried to Rome in 204 B.C. Closely associated with her was Attis , again a divinity of nature's powers of reproduction . Bibliography.- History : Ramsay , ' His ...
Stran 26
... passing obliquely from one medium to another in which the velocity of transmission is different are bent or refracted . If the velocity is lessened the bending is toward the perpendicular to the sur- face of contact , if the velocity is ...
... passing obliquely from one medium to another in which the velocity of transmission is different are bent or refracted . If the velocity is lessened the bending is toward the perpendicular to the sur- face of contact , if the velocity is ...
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algæ American animals Asexual reproduction became called carpels cause cells century chief chlorophyll Church coast color consists Consult crystal disease early elected endosperm England English epidermis feet filaments flowers France French fruit fungi gametes gametophyte genus Greek important inches Indian insects island known land large number later leaves light London manufacture ment miles mountain North oogone organ parasites Paris phloem phylum physical physiology pine pipes pistil Pittsburgh plane plants plate platinum poetry Poland polarized Polish political pollen Pompeii Port Port Royal Portland Porto Rico produced Railroad rays River Roman root Russia Saint seeds sepals sexual reproduction soil South species spores sporophyte square miles stamens stems surface tain tion tissues town trees tube United University usually various vegetation vols xylem York zoospores