The only pathways for the gases which thus pass between the cells of the mesophyll and the outside air are the stomata.
In gardening, a labyrinth or maze means an intricate network of pathways enclosed by hedges or plantations, so that those FIG.
They must secure their Calendar (Great Britain)] supply of moisture from the rain that falls on the glass, and flows into the narrow pathways from 9 in.
As it is impossible to use an ordinary wheelbarrow in these narrow pathways, the workman carries a specially made wicker basket called a " hotte " on his shoulders by means of two straps.
These areas are of small extent and are closely cultivated, and support thick forests of date-palms. All kinds of tropical vegetables, grains and small fruits grow under cultivation, and land is so precious in these limited areas of great richness and fertility that very narrow pathways divide each owner's plot from his neighbour's.
There is only one good road in the province, that from Enzeli to Kazvin by way of Resht; in other parts communication is by narrow and frequently impassable lanes through the thick forest, or by intricate pathways through the dense undergrowth.
The pathways should be paved with tiles, brick or stone, or made of concrete and cement, and the surface should be gently rounded so that the water required for evaporation may drain to the sides while the centre is sufficiently dry to walk upon; they should also have brick or stone edgings to prevent the water so applied soaking away at the sides and thus being wasted.
Wide, the water from the pathways is soaked up on each side by capillary attraction, and in this way the roots secure a sufficient supply.
A due amount of moisture may be kept up by the use of evaporating troughs and by syringing the walls and pathways two or three times a day, but the leaves should not be syringed.
Afterwards the pathways of the streams would be gradually deepened and widened into valleys.
In many modern gardens pathways made of old paving stones lead from the house to different parts.
This is necessary not only to make up the required hotbeds in the first place, but also to fill in the pathways between the frames, wherever it is considered advisable to maintain the heat within the frames at a certain point.
During the growing period the atmosphere must be kept moist by damping the walls and pathways, and by syringing the plants according to their needs; when growth is completed less moisture will be necessary.