Nature, Volume 108Sir Norman Lockyer Macmillan Journals Limited, 1921 |
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Página 10
... lines are close together . In many trials I have never succeeded in ruling on chemically deposited silver at even 2000 lines per inch . I have found , however , that films of certain aniline colours dried on glass are well adapted for ...
... lines are close together . In many trials I have never succeeded in ruling on chemically deposited silver at even 2000 lines per inch . I have found , however , that films of certain aniline colours dried on glass are well adapted for ...
Página 158
... lines were probably all well differentiated in the Upper Devonian flora . When we get back to the Middle and Lower Devonian the case is completely altered . Not one of the five phyla is here clearly represented , unless it be the ...
... lines were probably all well differentiated in the Upper Devonian flora . When we get back to the Middle and Lower Devonian the case is completely altered . Not one of the five phyla is here clearly represented , unless it be the ...
Página 256
... lines and the enhanced lines of manganese and iron progressively weaken from a to y , while the remaining iron lines and the enhanced lines of titanium progressively strengthen . Seven stars are indicated with spectra almost exact ...
... lines and the enhanced lines of manganese and iron progressively weaken from a to y , while the remaining iron lines and the enhanced lines of titanium progressively strengthen . Seven stars are indicated with spectra almost exact ...
Índice
Cusack Dr J The Arithmetic of the Decimal System 174 Doyle K D Agriculture and Irrigation in Continental | 7 |
BarrettHamilton and M A C Hinton Part | 21 |
Grandidier A obituary 286 Hamilton G H Observations of Mars at Flagstaff 447 | 32 |
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