Proceedings of the American Academy of Arts and Sciences, Volumen2Metcalf and Company, 1852 Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell. |
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Página 63
... oxide of lead , - that a scientific association in Germany made it a prize problem . The honor of deciding the question was accredited to Brendecke , whose views were coincided in by his unsuccessful competitor , Siebold , * and also by ...
... oxide of lead , - that a scientific association in Germany made it a prize problem . The honor of deciding the question was accredited to Brendecke , whose views were coincided in by his unsuccessful competitor , Siebold , * and also by ...
Página 64
... oxide of lead , by finding that the coat , which for the most part , in his experiments , consisted of car- bonate of lead , readily dissolved in acetic acid . This author has sug- gested that leaden pipes , before being laid down for ...
... oxide of lead , by finding that the coat , which for the most part , in his experiments , consisted of car- bonate of lead , readily dissolved in acetic acid . This author has sug- gested that leaden pipes , before being laid down for ...
Página 73
... oxide of lead , if any is in solution , will take place . This is one of the meth- ods frequently resorted to for separating organic bodies from solutions . † * A kind of fungous or flocculent mass fell with the lead , augmenting the ...
... oxide of lead , if any is in solution , will take place . This is one of the meth- ods frequently resorted to for separating organic bodies from solutions . † * A kind of fungous or flocculent mass fell with the lead , augmenting the ...
Página 75
... oxide and chloride ; as shown in the last suite of results . " The preceding experiments , as a whole , go to show that Cochituate water may be distributed through iron mains and leaden service - pipes with as little danger as ...
... oxide and chloride ; as shown in the last suite of results . " The preceding experiments , as a whole , go to show that Cochituate water may be distributed through iron mains and leaden service - pipes with as little danger as ...
Página 78
... oxide of lead , and oxide of iron . The crystalline laminæ upon the inner sur- face , characteristic of new pipe , are to be seen with the utmost distinct- ness , and present , with the exception of the coating , no appearance ...
... oxide of lead , and oxide of iron . The crystalline laminæ upon the inner sur- face , characteristic of new pipe , are to be seen with the utmost distinct- ness , and present , with the exception of the coating , no appearance ...
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