 | John Frederic Daniell - Meteorology - 1823 - 532 pages
...seasons of the year, and in different situations. It is well known to the agriculturist and the gardener, that without the direct influence of the sun, whatever...the fruits of the earth seldom come to perfection. What, then, is the force of this important agent ? what the modifications to which it is subject? and... | |
 | John Frederic Daniell - Meteorology - 1845 - 418 pages
...seasons of the year, and in different situations. It is well known to the agriculturist and the gardener, that without the direct influence of the sun, whatever...the fruits of the earth seldom come to perfection. What, then, is the force of this important agent? what the modifications to which it is subject? and... | |
| |
It is well known to the agriculturist and the gardener, that without the direct influence of the sun, whatever may be the temperature of the air, the fruits of the earth seldom come to perfection. What, then, is the force of this important agent ? what... 