To obviate these drawbacks the producer A is kept at a greater heat than is otherwise usual, the air required for feeding the producer being pre-heated in the channels e, e.
The master streams of the present have inherited their channels from the drainage systems of the Cretaceous lowland, and though raised athwart the courses of the lowland trunk streams the great arch was developed so slowly that these channels could be maintained through pari passu deepening.
Towards its mouth its waters find their way into all the channels intersecting the South Holland archipelago.
Every efferent channel, after entrance in the central nervous system, subdivides; of its subdivisions some pass to efferent channels soon, others pass further and further within the cord and brain before they finally reach channels of outlet.
This system of channels is in communication with the outer atmosphere through numerous small apertures, known as stomata, which are abundant upon the leaves and young twigs, and gaseous interchange between the plant and the air is by their assistance rendered constant and safe.
The state, for instance, could perhaps more usefully engage in some great works, such as establishing reservoirs of water for the use of town populations on a systematic plan, or making a tunnel under one of the channels between Ireland and Great Britain, or a sea-canal across Scotland between the Clyde and the Forth, or purchasing land from Irish landlords and transferring it to tenants, than allow money to fructify or not fructify, as the case may be, in the pockets of individuals.
Of the two channels named, the southern, which reaches the sea at Flushing, is the more important and is used for ocean commerce.
Tributary streams from the north formed channels through the marsh, flanking the island north and south, and were once connected by a dyke on the west.
If any portion of the waters of the Amazon runs round the southern side of the large island of Marajo into the river Para, it is only through tortuous, natural canals, which are in no sense outflow channels of the Amazon.
Coral formations are abundant; immense reefs, both barrier and fringing, skirt both coasts, often enclosing wide channels between the reef and the land.