The Encyclopedia Americana: A Library of Universal Knowledge ...Encyclopedia Americana Corporation, 1924 |
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Zadetki 1–5 od 100
Stran
... important was made by Fizeau , known as " gilding , " the deposition of an extremely thin film of gold on the surface of the plate , which materially added to the beauty and permanence of the image . The diffi- cult point about the ...
... important was made by Fizeau , known as " gilding , " the deposition of an extremely thin film of gold on the surface of the plate , which materially added to the beauty and permanence of the image . The diffi- cult point about the ...
Stran 6
... important observa- tories protography and the spectroscope are joined together and made daily , or rather nightly , to tell us more and more of the mystery of the heavens . As an educational adjunct , photography has played an important ...
... important observa- tories protography and the spectroscope are joined together and made daily , or rather nightly , to tell us more and more of the mystery of the heavens . As an educational adjunct , photography has played an important ...
Stran 7
... important , al- though much less popular , is the enlarging of small objects , " photomicrography . " In bacteri- ology , histology , etc. , its importance can hardly be overrated , affording , as it does , illustrations in works ...
... important , al- though much less popular , is the enlarging of small objects , " photomicrography . " In bacteri- ology , histology , etc. , its importance can hardly be overrated , affording , as it does , illustrations in works ...
Stran 17
... important case of photosynthesis consists in the formation of starch and other related compounds , from carbon dioxide and water , in the green leaves of plants . Light cannot produce chemical changes un- less it is absorbed . This ...
... important case of photosynthesis consists in the formation of starch and other related compounds , from carbon dioxide and water , in the green leaves of plants . Light cannot produce chemical changes un- less it is absorbed . This ...
Stran 18
... important function of some kind or other . has been shown , for example , that when a seedling is grown in the dark and subsequently placed in the light it does not necessarily pos- sess photosynthetic power as soon as chloro- phyll ...
... important function of some kind or other . has been shown , for example , that when a seedling is grown in the dark and subsequently placed in the light it does not necessarily pos- sess photosynthetic power as soon as chloro- phyll ...
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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