Many species of Thysanoptera are known to be habitually parthenogenetic. The eggs are laid on the food-plant, those females possessed of an ovipositor cutting through the epidermis and placing their eggs singly within the plant-tissues; a single female may take five or six weeks to deposit all her eggs.
During his whole reign, indeed, supposed offenders against the sultan's authority were clone to death, singly or in thousands.
The egg-shaped acorns are placed singly or two together on short stalks; they are in most years sparing].y produced, but are occasionally borne in some abundance.
In the Novum Organum, after giving a long list of the sources of heat, he says: "From these examples, taken collectively as well as singly, the nature whose limit is heat appears to be motion..
The tentacles also vary considerably in other ways than in number: first, in form, being usually simple, with a basal bulb, but in Cladonemidae they are branched, often in complicated fashion; secondly, in grouping, being usually given off singly, and at regular intervals from the margin of the umbrella, but in Margelidae and in some Trachomedusae they are given off in tufts or bunches (fig.
The tentacles may be scattered singly round the margin of the umbrella (" monerenematous ") or arranged in tufts (" lophonematous "); in form they may be simple or branched (Cladonemid type); in structure they may be hollow (" coelomerinthous "); or solid (" pycnomerinthous ").
In Clytia the polyps arise singly from the stolon, and the medusa is known as Phialidium (fig.
Here palm trees, which had begun to appear singly at Deir, grow in large groves, the olive disappears entirely, and we have definitely passed over from the Syrian to the Babylonian, flora and climate.
Tannery); To find four numbers such that, if we take the square of their sum any one of them singly, all the resulting numbers are squares (III.
The firs are distinguished from the pines and larches by having their needle-like leaves placed singly on the shoots, instead of growing in clusters from a sheath on a dwarf branch.
Mine cars are sometimes run long distances, singly or in trains, over roads which are given sufficient grade to impart considerable speed by gravity, say from I to 21%.
Irrotational Motion in General.-Liquid originally at rest in a singly-connected space cannot be set in motion by a field of force due to a single-valued potential function; any motion set up in the liquid must be due to a movement of the boundary, and the motion will be irrotational; for any small spherical element of the liquid may be considered a smooth solid sphere for a moment, and the normal pressure of the surrounding liquid cannot impart to it any rotation.
The eyes being selected from well-ripened shoots of the previous year are planted about the end of January, singly, in small pots of light loamy compost, and after standing in a warm place for a few days should be plunged in a propagating bed, having a bottom heat of 75°, which should be increased to 85° when they have produced several leaves, the atmosphere being kept at about the same temperature or higher by sun heat during the day, and at about 75° at night.
In high quality tobaccos the leaves are " primed " or picked singly as they ripen, but in the great bulk of American tobaccos the whole plant is cut close to the ground when the middle leaves are about ripe.
The blackbird is of a shy and restless disposition, courting concealment, and rarely seen in flocks, or otherwise than singly or in pairs, and taking flight when startled with a sharp shrill cry.
His purpose, as stated by himself, was to show that in words, even taken singly, "there are boundless stores of moral and historic truth, and no less of passion and imagination laid up" - a truth enforced by a number of most apposite illustrations.
Of those who escaped to the provinces the greater number, after wandering about singly or in groups, were either captured and executed or committed suicide, among them Barbaroux, Buzot, Condorcet, Grangeneuve, Guadet, Kersaint, Petion, Rabaut de Saint-Etienne and Rebecqui.
"Adverting to Rome singly," adds the same author, "we perceive that the primary group, the family, was being constantly adulterated by the practice of adoption."
In the earliest age of Christian monasticism the ascetics were accustomed to live singly, independent of one another, at no great distance from some village, supporting themselves by the labour of their own hands, and distributing the surplus after the supply of their own scanty wants to the poor.
The flowers are borne singly in the leaf-axils on a stalk about half the length of the leaf and jointed and bent in the middle; the corolla is blue-purple.
Plants are readily grown from seed, which should be sown singly in small pots and placed in heat early in March.
The greater part of these lands was irrigated by canals or ditches built by individuals acting singly or in co-operation with their neighbours, or by corporations.
The distinctive features of their creed consist in their making Rama and Sita, either singly or conjointly, the chief objects of their adoration, instead of Vishnu and Lakshmi, and their attaching little or no importance to the observance of privacy in the cooking and eating of their food.
When the grapes have attained the proper degree of ripeness, or rather over-ripeness, they are gathered with the greatest care, the berries being frequently cut off from the branches singly, and sorted according to their appearance.
Until comparatively recent times the surrounding district was in a state of nature with merely a thin coating of turf interspersed with tufts of heath and dwarf thistles, but bare of trees and shrubs and altogether devoid of the works of man, with the exception of a series of prehistoric barrows of the Bronze Age which, singly and in groups, studded the landscape.
Doctors came to see her singly and in consultation, talked much in French, German, and Latin, blamed one another, and prescribed a great variety of medicines for all the diseases known to them, but the simple idea never occurred to any of them that they could not know the disease Natasha was suffering from, as no disease suffered by a live man can be known, for every living person has his own peculiarities and always has his own peculiar, personal, novel, complicated disease, unknown to medicine--not a disease of the lungs, liver, skin, heart, nerves, and so on mentioned in medical books, but a disease consisting of one of the innumerable combinations of the maladies of those organs.
Amid the powder smoke, slowly dispersing over the whole space through which Napoleon rode, horses and men were lying in pools of blood, singly or in heaps.
"What people are these?" he shouted to the men, who were moving singly and timidly in the direction of his trap.
Only at the end of it, in front of the almshouse and the lunatic asylum, could be seen some people in white and others like them walking singly across the field shouting and gesticulating.
In such actions, instead of two crowds opposing each other, the men disperse, attack singly, run away when attacked by stronger forces, but again attack when opportunity offers.