The Paraguay is in great part a lowland river, with a sluggish current, and is navigable by large river steamers up to Corumba, and by smaller steamers to Cuyaba and the mouth of the Jauru.
Their mental capacity is considerable, though there is a great difference between the sluggish inhabitant of Great Nicobar and the keen trader of Car Nicobar.
He was cast in the coarsest mould; a stout but sluggish body, yet gracefully carried, with a thick sunburnt neck, dark bushy hair, and dull sleepy blue eyes, which were occasionally lit up with expression.
The general elevation in the south part of the state is much lower, and large areas bordering the Paraguay are swampy, partially submerged plains which the sluggish rivers are unable to drain.
The first is flaccid and sluggish in its movements, and has not much power of contraction; its epipodial lobes are enormously developed and extend far forward along the body; it gives out when handled an abundance of purple liquid, which is derived from cutaneous glands situated on the under side of the free edge of the mantle.
Besides, such is the breadth of the upper part of the front of his head, and such the tapering cut-water formation of the lower part, that by obliquely elevating his head, he thereby may be said to transform himself from a bluff-bowed sluggish galliot into a sharppointed New York pilot-boat.
Actually the frost came later than usual that year, the 27th of October, and the weather was dry and bracing; not till the 8th of November did the cold at night become sharp. Even when the Beresina was reached on the 26th November, the cold was far from severe, for the slow and sluggish stream was not frozen over, as is proved by the fact that Eble's pioneers worked in the water all through that terrible day.
Of the Suchiate and Hondo, which form part of Mexico's southern boundary, the first is a short, impetuous mountain torrent flowing into the Pacific, and the other a sluggish lowland stream rising in north-eastern Guatemala and flowing north-east through a heavily forested region to Chetumal Bay.
Towards the sea the solid land gives place to a vast network of streams and creeks, whose sluggish waters are constantly depositing silt, and forming morasses or quicksands.
The great rivers of Australia, draining inland, carve out valleys, dissolve limestone, and spread out their deposit over the plains when the waters become too sluggish to bear their burden farther.