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Raamatud Books 1 - 4 of 4 on THE MIGRATION OF BIRDS' \Xf HILE showing some friends the astronomical observatory....
" THE MIGRATION OF BIRDS' \Xf HILE showing some friends the astronomical observatory and accessories connected with the College of New Jersey at Princeton, on the night of October 19, 1880, after looking at a number of objects through the 94-inch equatorial,... "
Bulletin of the Nuttall Ornithological Club - Page 98
by Nuttall Ornithological Club - 1881
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Nature, 24. köide

Sir Norman Lockyer - 1881
...night of October 19, 1880, after looking at a number of objects through the 94-inch equatorial, we were shown the moon, then a few days past its full phase....the tail were conspicuous, when the bird was well focussed. As the moon had not been very long above the horizon the direction of observation was consequently...
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Nature, 24. köide

Sir Norman Lockyer - 1881
...night of October 19, 1880, after looking at a number of objects through the 94-inch equatorial, we were shown the moon, then a few days past its full phase....the tail were conspicuous, when the bird was well f ocussed. As the moon had not been very long above the horizon the direction of observation was consequently...
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The American Naturalist

1881
...some friends, looking through the 9^ inch equatorial at Princeton, NJ, at the moon, his attention was arrested by numbers of small birds, more or less plainly seen, passing across the field of observation. Most of the birds were the smaller land birds, among which were plainly recognized warblers, finches,...
Full view - About this book

Nature, 24. köide

Sir Norman Lockyer - 1881
...of October 19, 1880, after looking at a number of objects through the 94 -inch equatorial, we were shown the moon, then a few days past its full phase....the tail were conspicuous, when the bird was well focussed. As the moon had not been very long above the horizon the direction of observation was consequently...
Full view - About this book




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