Nature, Volume 72Sir Norman Lockyer Macmillan Journals Limited, 1905 |
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Página 40
... known generic types , although there are grounds for considering that some of those included in Thalassema might advan- tageously be assigned to a new genus . SOME excellent photographs of Australian bird - life are reproduced in the ...
... known generic types , although there are grounds for considering that some of those included in Thalassema might advan- tageously be assigned to a new genus . SOME excellent photographs of Australian bird - life are reproduced in the ...
Página 41
... known that more nearly reached chemical purity . At a much lower depth , in what is known as the sulphide zone , the gold is much alloyed with silver . The silver was got rid of in the transference of the leached ore to the enriched ...
... known that more nearly reached chemical purity . At a much lower depth , in what is known as the sulphide zone , the gold is much alloyed with silver . The silver was got rid of in the transference of the leached ore to the enriched ...
Página 42
... known as Pelton wheels , for conveying the water itself into burning build- ings , or for the destructive process of breaking down a mountain side , as practised in hydraulic mining . All this is especially the case in mountainous ...
... known as Pelton wheels , for conveying the water itself into burning build- ings , or for the destructive process of breaking down a mountain side , as practised in hydraulic mining . All this is especially the case in mountainous ...
Página 44
... known of the tree since 1700 , Mr. Clayton arrives at the conclusion that its age is not more than 500 years ... known examples of the age and dimensions which trees may attain . A stem in the British Museum shows 1330 year- rings with a ...
... known of the tree since 1700 , Mr. Clayton arrives at the conclusion that its age is not more than 500 years ... known examples of the age and dimensions which trees may attain . A stem in the British Museum shows 1330 year- rings with a ...
Página 52
... known in our collections , is on an Upper Muschelkalk horizon . While the Eocene period is probably represented by a Flysch - facies , the Oligocene and Miocene lagoons and freshwater lakes show that the mountain - land of Bosnia was ...
... known in our collections , is on an Upper Muschelkalk horizon . While the Eocene period is probably represented by a Flysch - facies , the Oligocene and Miocene lagoons and freshwater lakes show that the mountain - land of Bosnia was ...
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