Boston Journal of Philosophy and the Arts: Intended to Exhibit a View of the Progress of Discovery in Natural Philosophy, Mechanics, Chemistry, Geology and Mineralogy, Natural History, Comparative Anatomy and Physiology, Geography, Statistics, and the Fine and Useful Arts, 2권Cummings, Hilliard, & Company, 1825 |
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37 페이지
... plate of iron firmly attached to the stone gate before mentioned , then pass over the first ditch , across the stone ... plates , are loaded with masses of stone and buried in the earth . From the six principal lines other lines descend ...
... plate of iron firmly attached to the stone gate before mentioned , then pass over the first ditch , across the stone ... plates , are loaded with masses of stone and buried in the earth . From the six principal lines other lines descend ...
41 페이지
... plate of an air- pump , a vessel with sulphuric acid , and another with water , and by properly adjusting the surfaces of the two , it is easy to maintain , in the included atmosphere of permanently - elas- tic fluid , an atmosphere of ...
... plate of an air- pump , a vessel with sulphuric acid , and another with water , and by properly adjusting the surfaces of the two , it is easy to maintain , in the included atmosphere of permanently - elas- tic fluid , an atmosphere of ...
43 페이지
... plate of the air - pump , and covered with the receiver . The temperature of the water and air was 52 ° , and the height of the barome- ter 29.8 . The following table shews the dew point , which was obtained at intervals of half an hour ...
... plate of the air - pump , and covered with the receiver . The temperature of the water and air was 52 ° , and the height of the barome- ter 29.8 . The following table shews the dew point , which was obtained at intervals of half an hour ...
44 페이지
... plate , I attached a very delicate mercurial thermometer ; this was fixed air - tight , upon the top of a large glass receiver , which covered a surface of sulphuric acid of nearly equal dimen- sions with its base . Upon a tripod of ...
... plate , I attached a very delicate mercurial thermometer ; this was fixed air - tight , upon the top of a large glass receiver , which covered a surface of sulphuric acid of nearly equal dimen- sions with its base . Upon a tripod of ...
52 페이지
... plates of lead into the boiler . But some manufacturers do not wish to separate the copper , because it gives the sugar of lead a slight bluish tinge , which pleases the eye of many of the buyers . In this solution of the litharge in ...
... plates of lead into the boiler . But some manufacturers do not wish to separate the copper , because it gives the sugar of lead a slight bluish tinge , which pleases the eye of many of the buyers . In this solution of the litharge in ...
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action angle animals appears arrack ascertained atmosphere aurora borealis ball beds carbonic carbonic acid cause centre circumstances clay coco-nut coefficient colour conductor considerable contains copper crystals degree deposits diameter direction distance earth electricity employed equal Europe evaporation experiments exposed feet fissures fluid formation geognostical glass gneiss granite greywackes height hornblende hyæna hydrogen inches iron Klaproth labour larvæ latitude less light lignite limestone luminous magnetic manner mass means mercury metal miles mineral mixture mountains muriatic acid nature nearly needle nitric acid observed obtained oxide oxygen paratonnerre pass plate platinum poison porphyries portion present produced proportion Puracé quantity quartz rays remarkable rendered rocks selenium shock slate species specimens stone substance sufficient sulphuric acid surface syenite temperature term thermometer tion trachytes tree vapour vessel volcano whole wire zinc