Nature, Volume 35Nature Publishing Group, 1886 |
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Página 108
... produced by the addition of a minute quantity of lead . I have cited these facts mainly to show that the changes produced in the colour and properties of metals by small variations of composition were such as to lead the alchemists on ...
... produced by the addition of a minute quantity of lead . I have cited these facts mainly to show that the changes produced in the colour and properties of metals by small variations of composition were such as to lead the alchemists on ...
Página 109
... produced by the union of metals . Here is a mass of red copper , and here one of gray antimony : the union of the two by fusion produces a beautiful violet alloy when the proportions are so arranged that there is 51 per cent . of copper ...
... produced by the union of metals . Here is a mass of red copper , and here one of gray antimony : the union of the two by fusion produces a beautiful violet alloy when the proportions are so arranged that there is 51 per cent . of copper ...
Página 471
... produced light pupa , and the greater the illumination the lighter the pupa ( P. rapa ) ; dark red ( P. brassica ) produced dark pupae ; deep orange , in both species , produced very light pupa of a green colour ; pale yellow and ...
... produced light pupa , and the greater the illumination the lighter the pupa ( P. rapa ) ; dark red ( P. brassica ) produced dark pupae ; deep orange , in both species , produced very light pupa of a green colour ; pale yellow and ...
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