Science, Opseg 22John Michels (Journalist) American Association for the Advancement of Science, 1893 |
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Stranica 1
... tion is represented by the equation : — NH , + Na Na NH , + H. = When the globules of sodium had all disappeared , the nitrous oxide was substituted for the ammonia , and the temperature of the bath lowered to 230 ° – 250 ° C. Two ...
... tion is represented by the equation : — NH , + Na Na NH , + H. = When the globules of sodium had all disappeared , the nitrous oxide was substituted for the ammonia , and the temperature of the bath lowered to 230 ° – 250 ° C. Two ...
Stranica 13
... tion of Watt's Dictionary of Chemistry , in fair con- Philadelphia . Queen & Co. , dition ; one thirty volume edition ( 9th ) of Allen's Encyclopædia Britannica , almost new . Will sell Povidence , R. I. cheap for cash or will exchange ...
... tion of Watt's Dictionary of Chemistry , in fair con- Philadelphia . Queen & Co. , dition ; one thirty volume edition ( 9th ) of Allen's Encyclopædia Britannica , almost new . Will sell Povidence , R. I. cheap for cash or will exchange ...
Stranica 19
... tion of the sensation of grey gives it the same great advantage over the Young - Helmholtz theory that is possessed by the theory of Hering ; it enables it , namely , to account for the remarkable fact that the sensation of grey exists ...
... tion of the sensation of grey gives it the same great advantage over the Young - Helmholtz theory that is possessed by the theory of Hering ; it enables it , namely , to account for the remarkable fact that the sensation of grey exists ...
Stranica 21
... tion G would be scantily patronized . This , however , does not seem a reasonable interpretation , for if there is a limitation on the congress , we should expect it to be open only to the best papers of most general interest , which ...
... tion G would be scantily patronized . This , however , does not seem a reasonable interpretation , for if there is a limitation on the congress , we should expect it to be open only to the best papers of most general interest , which ...
Stranica 27
... tion of soil , animate and inanimate enemies of the forest , vapor , rain , drainage , climate , hail , reforestation and tree planting , etc. The last chapter , called “ Primer of primers , " contains in short , concise sentences the ...
... tion of soil , animate and inanimate enemies of the forest , vapor , rain , drainage , climate , hail , reforestation and tree planting , etc. The last chapter , called “ Primer of primers , " contains in short , concise sentences the ...
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