 | 1828 - 746 pages
...close to the ground, rain is almost surely approaching. Can you account for this? “HAL.—Swallows follow the flies and gnats, and flies and gnats ‘usually...air, when the warm strata of air are high, there is chance of moisture being thrown down from them by the mixture with cold air; but when the warm and... | |
 | Agriculture - 1829 - 786 pages
...but when they fly low and close to the ground, rain is almost surely approaching, because swallows follow the flies and gnats, and flies and gnats usually...cold air, when the warm strata of air are high, there it less chance of moisture being thrown down from them by the mixture with cold air ; but when the... | |
 | Science - 1828 - 456 pages
...of air ; and as warm air is lighter, and usually moister, than cold air, when the warm strata of our air are high, there is less chance of moisture being...from them by the mixture with cold air ; but when the warm and moist air is close to the surface, it is almost certain that, as the cold air flows down... | |
 | Sir Humphry Davy - Fishing - 1828 - 300 pages
...close to the ground, rain is almost surely approaching. Can you account for this? HAL. — Swallows follow the flies and gnats, and flies and gnats usually...down from them by the mixture with cold air; but when the warm and moist air is close to the surface, it is almost certain that, as the cold air flows down... | |
 | Presbyterianism - 1828 - 596 pages
...and gnats usually delight in warm strata of air; and as warm air, is lighter, and usually moist er than cold air, when the warm strata of air are high,...from them by the mixture with cold air ; but when the warm and moist air is close to the surface, it is almost certain that as the cold air flows down... | |
 | Geology - 1828 - 450 pages
...of air ; and as warm air is lighter, and usually moister, than cold air, when the warm strata of our air are high, there is less chance of moisture being...from them by the mixture with cold air ; but when the warm and moist air is close to the surface, it is almost certain that, as the cold air flows down... | |
 | John S. Skinner - 1829 - 436 pages
...follows: swallows pursue the flies and gnats, and flies and gnats usually delight in a warm strata of air. As warm air is lighter, and usually moister, than...down from them by the mixture with cold air; but when the warm and moist air is close to the surface, it is almost certain, that as the cold air flows down... | |
 | 1829 - 762 pages
...of air ; and as warm air is lighter and usually moister than cold air, when the warm «trata of our air are high, there is less chance of moisture being...from them by the mixture with cold air ; but when the warm and moist air is close to the surface, it is almost certain that, ai the cold ab? во«*... | |
 | English literature - 1829 - 832 pages
...of air ; and as warm air is lighter, and usually moister, than cold air, when the warm strata of our air are high, there is less chance of moisture being...from them by the mixture with cold air ; but when the warm and moist air is close to the surface, it is almost certain that, as the cold air flows down... | |
 | Library, John Baxter - Agriculture - 1830 - 594 pages
...of air ; and as warm air is lighter and usually moister than cold air, when the warm strata of our air are high, there is less chance of moisture being...from them by the mixture with cold air ; but when the warm and moist air is close to the surface, it is almost certain that, as the cold air flows into... | |
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Swallows follow the flies and gnats, and flies and gnats usually delight in warm strata of air; and as warm air is lighter, and usually moister than cold air, when the warm strata of air are high, there is less chance of moisture being thrown down from... 
