Their alternate hosts are mosquitoes of the Culex genus.
Blith's book is the first systematic work in which there are some traces of alternate husbandry or the practice of interposing clover and turnip between culmiferous crops.
One side of a stem may be more turgid than the opposite one, and the maximum turgidity, with its consequent growth, may alternate between two opposite sides.
Recently upheaved from the sea were spread at low levels with alternate inundations of salt and fresh water.
All the bones of the limbs are separate, and those of the carpus and tarsus do not alternate; that is to say, each one in the upper row is placed immediately above the corresponding one in the row below.
Loschmidt (Monats., 1890, II, p. 28), would not give stereo-isomers; and the arrangement of placing the tetrahedra on alternate sides, a form afterwards developed by W.
In Lingula the shell is composed of alternate layers of chitin and of phosphate of lime.
Of 52 protected persons on one line, all escaped except two, who were careless; of 52 protected on another line, all escaped; while of 51 unprotected persons, living in alternate houses, all suffered except seven.
In the other animals several parasites have been described by different observers, but the alternate hosts are not known.
The forest zone extends to about 10,500 ft., above which is the steeper alpine zone, in which pasturages alternate with rocks and crags.
The process is repeated every alternate year, until the tree no longer yields the resin in abundance, which under favourable circumstances it will do for twenty years or more.
His early years were spent in alternate pleasure and military service.
The five stamens alternate in position with the lobes of the corolla.
At one time the land was held on the "runrig" system - that is, different tenants held alternate ridges - but now as a rule each holding is separate.
Often bands of spherulites alternate with bands of pure glass, a fact which seems to indicate that the growth of these bodies took place before the rock ceased to flow.
By the alternate application and withdrawal of a small magnetizing force a cyclic condition may be established in an iron rod.
The existence of the parasite is maintained by a vicious interchange between its alternate hosts, mosquitoes and man,.
Causes an accumulation of air over the cold area, The diminution of barometric pressure which takes place all over Asia during the summer months, and the increase in the winter, are hence, no doubt, the results of the alternate heating and cooling of the air over the continent.
Along the western shore woods and prairies alternate, interspersed with a few high peaks.
Has gigantic cryptomerias and chamoecyparis; then follow pines; then, at a height of 9500 ft., a broad plateau, and then alternate stretches of grass and forest up to the top, which consists of several small peaks.
The leaves, which - are generally alternate, are usually entire and narrow: the radical leaves in some genera, as Pulmonaria (lungwort) and Cynoglossum, differ in form from the stem-leaves, being generally broader and sometimes heart-shaped.
It is possible to tap or prick trees daily for a number of years without apparent injury, but the practice of tapping on alternate days appears to be safer and to afford equally satisfactory if not better results.
By the crushing action of their pincers, and an alternate backward and forward movement, they bring the soft blood-holding tissues of the victim close to the minute pin-hole aperture which is the scorpion's mouth.
In the case of oxen the alternate host of the parasite is a special tick (Smith and Kilborne).
Nor did this increased tillage interfere with the increase of live stock, as the green crops of the alternate husbandry more than compensated for the diminished pasturage.
He continued his alternate policy of war and peace, meanwhile adding if possible by his depredations to the misery of France, until the conclusion of the treaty of Bretigny in May 1360 deprived him of the alliance of the English, and compelled him to make peace with King John in the following October.
Belting intended for driving machinery is built up of canvas which has been thoroughly frictioned with the soft mixed rubber, and is cured by placing it in a kind of press kept by means of steam at a dry heat of about 140° C. Packing for the stuffing boxes of steam engines is similarly prepared from strips of rubber and friotioned canvas, as also are the so-called insertion sheets, in which layers of rubber alternate with canvas or even wire gauze.
For some years, however, she was able to alternate between Coppet and Paris without difficulty, though not without knowing that the First Consul disliked her.
The former often has its cells lignified, and may consist of alternate layers of hard and soft cells.
Thus we get a complete scientific demonstration of the causation of malaria in three stages: (1) the discovery of the parasite by Laveran; (2) its life-history in the human host and connexion with the fever demonstrated by the Italian observers; (3) its life-history in the alternate host, and the identification of the latter with a particular species of mosquito by Ross and Manson.
Alternate or opposite leaves, often with membranous united stipules.