Über die Volltextsuche können Sie mit einem oder mehreren Begriffen den Gesamtbestand der digitalisierten Zeitungen durchsuchen.
Hier können Sie gezielt in einem oder mehreren Zeitungsunternehmen bzw. Zeitungstiteln suchen, tagesgenau nach Zeitungsausgaben recherchieren oder auf bestimmte Zeiträume eingrenzen. Auch Erscheinungs- und Verbreitungsorte der Zeitungen können in die Suche mit einbezogen werden. Detaillierte Hinweise zur Suche.
Für Der gerade Weg/Illustrierter Sonntag haben Sie die Möglichkeit, auf Ebene der Zeitungsartikel in Überschriften oder Artikeltexten zu suchen.
[...] and one-half to two inches in length, and are constant in their characters. Moreover, four of the seven specimens from the Mammoth Cave were females with eggs. These eggs were as large in proportion as those from Ambly of sis. The ovary was single, and situated on the right [...]
[...] of sis. The ovary was single, and situated on the right side of the stomach, as in Amblyopsis. The difference in the number of eggs was very remarkable, each of the four specimens examined having but about thirty eggs in the ovary, while in three females of Amblyopsis (all, [...]
[...] the ovary, while in three females of Amblyopsis (all, however, of nearly three times the size of Ty///ichthys) there were about one hundred eggs in each. As in both species there were no signs of the embryos in the eggs, it is not probable that any of the eggs had been developed [...]
[...] is not probable that any of the eggs had been developed and the young excluded, nor is it at all likely that the great variation in the number of eggs would simply indi cate different ages. For these reasons, taken in connec tion with the absence of ventral fins, I have no hesitation [...]
[...] half broad, stretching about N.E. and S.W., and several Smaller ones at the eastern extremity, known as Platform Island, Booby Island, St. Michael's Mount, Egg Island, and Pat Island. They are situated in the Atlantic, in lat. 39° 50', about 200 miles from the nearest point of the [...]
[...] tion in the present memoir are:— 1. The explanation of the basket-work structure of the surface of the ovarian egg, by the plication of the inner egg-capsule. 2. The increase of the yelk by the inception of cells pro liferated from the inner egg-capsule. [...]
[...] 2. The increase of the yelk by the inception of cells pro liferated from the inner egg-capsule. 3. The homogeneous condition of the egg at fertilisation. 4. The limitation of yelk-cleavage to the cleavage-patch. 5. The occurrence of independently-formed corpuscles (the [...]
[...] ing communication made by Prof. Panceri to the Institut Egyptien at its meeting on December 13, on Cryptogamic vegeta tion found within the egg of an ostrich, which was interesting in connection with what he had himself brought before the committee on March 5 and 19, 1873. The egg had been given Prof. Panceri [...]
[...] him, and he had communicated the results to the Botanical Con ess held at Lugane in 1859. The Rev. M. J. Berkeley had ound Cladosporium herbaram in the interior of a fowl's egg.— Dr. Masters brought shoots of Picea nobilis, in which the pri mary shoot was dead and swollen beneath the apex. In many [...]
[...] dergo changes which have reference entirely to their own requirements and condition. It is evident, then, that while the embryonic development of an animal in the egg may be an epitome of its specific history, this is by no means the case with species in which the immature forms have a [...]
[...] in which alternation of generations may have originated. The caterpillar owes its difference from the butterfly to the early stage at which it leaves the egg ; but its actual form is mainly due to the influence of the condi tions in which it lives. If the caterpillar, instead of [...]
[...] are, however, some flies which have viviparous larvae, and thus offer a typical case of alternation of generations, owing to the early period of leaving the egg, and the action in many cases of external circumstances on the larva different from those which affect the mature form. [...]
[...] from the case of simple growth to that of alternation of generations; and we see how from the single fact of the early period at which certain animals quit the egg, we can account for their metamorphoses and for the still more remarkable phenomenon that, among many of [...]
[...] 1. That the occurrence of metamorphoses arises from the immaturity of the condition in which some animals quit the egg. 2. That the form of the insect larva whenever it departs from the original vermiform type, depends in [...]
[...] the rapidity of the changes going on in it. 6. Although the majority of insects go through three well-marked stages after leaving the egg, still a large number arrive at maturity through a somewhat indefinite number of slight changes. [...]
[...] 8. Thus, then, it appears probable that these remark able phenomena may have arisen from the simple cir cumstance that certain animals leave the egg at a very early stage of development, and that the external forces acting on the young are different from those which affect [...]
[...] of the British Association at Glasgow. The Strathmore was wrecked on July 1, 1875, and speaking of a period four months later, when penguin's eggs had begun to furnish the castaways with ample food, Mr. Wordsworth says: “The eggs did everyone a great deal of good ; those who had [...]
[...] been haggard and miserable got quite plump and fresh ; some of them ate about thirty at a meal, and we now saw each other with clean faces, for we used the eggs as soap ; while a most re markable thing was that every one had fair skins and light hair, dark faces and hair being quite changed, black hair turning [...]
[...] bright red, they cover nearly, without interruption, the stones, assuming the forms of flat thick carpets, and half spherical, totally spherical, or egg-shaped masses, reach ing the size of a child's fist. Altogether, the two cruises in the northern parts of the Caspian gave a very interesting, [...]
[...] have appeared convenient to it, for it soon began to bring in small caterpillars, building each in with earthy paste, till the tube was full. In each cell an egg was also deposited. M. Skalweit took away this holder, and put another in its place. This was similarly filled by the wasp, though in rainy weather [...]
[...] branches of ganglion-cells.--August Weissmann has an elaborate contribution on the Daphnidae, dealing with the formation of the winter eggs in Leptodora hyalina. He describes at length the origin of the winter egg, which at first contains several large nutritive cells destined to have all their contents absorbed by one [...]
[...] voyage. What has been done is as follows:—A quarter of a million of eggs have been taken from large, living salmon captured expressly for the purpose. These ova have been treated on what may be called the “piscicultural plan,” [...]
[...] captured expressly for the purpose. These ova have been treated on what may be called the “piscicultural plan,” that is, the eggs have been forcibly extruded from the fish in a vessel filled with water, by means of gentle pres sure applied to the abdomen, from which they fall quite [...]
[...] nated with the milt of the male fish, and are then ready to be laid down on the hatching boxes. On the present occasion the eggs were brought from Perthshire, where they were obtained, chiefly from tributaries of the rivers Forth and Tay, to Glasgow, in order to undergo the pro [...]
[...] Forth and Tay, to Glasgow, in order to undergo the pro cess of packing for their long voyage. It is gratifying to know that only a very small portion of the eggs were spoiled while undergoing the process of being fecundated. The plan adopted on the present occasion was to pack [...]
[...] not be broken open till the ship is in port. It is an im portant circumstance in favour of this experiment that the eggs selected were all taken from fish which, judg ing by their dimensions, would be of considerable weight; not a few of them must have weighed over twenty-five [...]
[...] not a few of them must have weighed over twenty-five pounds. They were not in the least injured during the process of compulsory deprivation of their eggs and milt, but when restored to the water went off quite lively, and as if they had enjoyed the process of artificial spawning. [...]
[...] The ship is expected to reach her destination, Bluff Harbour, New Zealand, about the end of March, at which date all the salmon eggs which she carries would, in the natural state, have become living fish, and, indeed, be a week or two old. The Tºmaru, as the time ap [...]
[...] perature which must result from the enormous quantity of ice that is in use. How far the rivers of New Zealand, seeing that upon the arrival of the eggs they will be at an autumnal temperature, may be suited for the ripening of the fish, has yet to be determined. We sincerely hope [...]
[...] WE notice to-day the sailing of the 7 imaru, from Glasgow, with a consignment of salmon eggs for Otago, New Zealand. The ship Zintern Abbey has also recently sailed for New Zealand, having on board no less than 1,130 living birds, viz., black [...]
[...] 273 miles from the nearest land, by Capt. Payne, of the barque Hºllan Mansoon. —A letter was read from Mr. Anderson, of Futteyghur, East Indies, giving an account of the eggs and young of the Gavial (Gavialis gangeticus).—The Secretary read a letter addressed to him by the Marquis of Normanby, Governor [...]
[...] At a meeting of the Philosophical Society of Christchurch, New Zealand, in August last, the President, Dr. Haast, made a few observations on some moa eggs recently received from the Colonial Museum, in comparison with those of living birds. The various models of eggs were displayed on the table. The Presi [...]
[...] Colonial Museum, in comparison with those of living birds. The various models of eggs were displayed on the table. The Presi dent said that the first egg to which he would desire to draw their attention was one the pieces of which had been discovered by the Hon. Walter Mantell, and by him reunited after much labour. [...]
[...] attention was one the pieces of which had been discovered by the Hon. Walter Mantell, and by him reunited after much labour. The original egg, from which a model had been taken by Dr. Hector, was in the British Museum. The second model was that of the largest egg found. It had been discovered in the [...]
[...] of it having been so found, he argued that the moa was of great antiquity, as there was no mention in the very earliest Maori traditions of such a mode of burial being adopted. The egg was afterwards exhibited at the Otago Exhibition, and the model had been made by Dr. Hector from measurements taken by him. [...]
[...] afterwards exhibited at the Otago Exhibition, and the model had been made by Dr. Hector from measurements taken by him. The third and last model was that of a small egg now in the Colonial Museum, which had been found in Otago, and which had in it the bones of a moa chick. [...]
[...] were conducted principally upon the ova of the Nematoid worms and the Rotifers. To a limited extent the living egg was studied ; but the greater part of the results are derived from investigations of the ova treated with acetic acid. This is greatly to be regretted. The difficulties [...]
[...] instances adduced by Bütschli of earliest ovum develop ment; but that may suffice to indicate the distinctive nature of his work. We select the eggs of Nepheli’s vul garis. In their youngest state, the yolk is retracted from the delicate membrane, and there is, resting on the yolk, [...]
[...] zone of granules. This protruded vesicle is the “Rich tungsbläschen;” the real place and relation of which, in the subsequent development of the egg, is nowhere deter mined by these researches. In the stage of partial pro trusion of this vesicle, at about a quadrant from the [...]
[...] repetitions of this. It becomes from the above apparent that Bütschli takes it for granted, first, that the eggs studied had been subject to no earlier developmental changes than those with which he starts. Next, that there can be no question as to the [...]
[...] consider that the process of nucleus formation described is widely diffused in the animal world, and that it is probably universal in impregnated eggs. But (1) there is not the remotest evidence to show that processes of considerable import may not have preceded [...]
[...] expulsion of the “Richtungsbläschen” may show itself as one of the earliest phenomena of development in the unfertilised egg. This is now admitted, and in the ap pendix is allowed by Bütschli. 4. The universal application of the method of develop [...]
[...] to have shown the existence of the clear spaces and ray ings accompanying the nucleus-transformations in the eggs of spiders four years before. But evidently a step is gained by these observations on the earliest develop ment of the ovum; although, from the careful work of [...]
[...] Potato leaf with eggs of Colorado Beetle on under side. [...]
[...] it can be of the least possible advantage to the species. The great sources of destruction here, as in all groups of animals, are in early life. How large a proportion of the eggs that are laid by butterflies ever finally produce imagines? Let those answer who have attempted to ſollow their history in their native [...]
[...] nine-tenths—perhaps ninety-nine hundredths – never reach maturity. Hymenopterous and dipterous parasites beset them at every step ; the eggs, although so small and often heavily ridged, cannot escape the ovipositors of the tiny Pteromali; while in attempting to breed caterpillars taken in the field, the [...]
[...] Now it is a curious fact that while the globular egg of Zimenitis J/si/Aus, with its deeply-pitted shell, defended by long filamen tous spines, is constantly attacked by parasites ; and the gro [...]
[...] species is likewise infested to an extraordinary degree, I have been unable to discover by very careful search any evidence that the egg or larva of Danais Archippus is ever pierced by a parasite; yet the egg is not small and only lightly ribbed, and the caterpillar large, fleshy, smooth-skinned, and gaily banded, [...]
[...] living on the widely-separated leaves of Asclepias, with no attempt at concealment. The abundance of the imago of the Danais is then due quite as much to the immunity of the egg and larva from the attacks of parasites, as to any freedom it may itself enjoy from pursuit by insectivorous birds. [...]
[...] varying proportions. And the case is not open to any doubt, because in the intermediate district, both yellow and black in sects have been bred from the same batch of eggs. Now, if the case had been that both males and females equally varied, and that in the south all were black and in the north [...]
[...] on Solar Physics by J. Norman Lockyer, F.R.S., 369 Cuckoo and Pipit: Ejection from the Nest, 383 Cuckoo's Eggs, 5ol Cyclone in the West Indies, 507 [...]
[...] New York: Anthropological Institute, 250 ; Medical Society, 232 ; Museum of Natural History, 152, 2 to New Zealand, Forest Trees, 14, 27, 84, 123, 421 ; Eggs of the Moa, 7o ; Ornithology and Botany, 262 ; Wellington Philo sophical Society, 215 ; Recent Examples of the Moa, 216 [...]
[...] Potential Energy, 382 Potts (Thos. H.), on the Change of Habits in Animals and Plants, 262 ; on Cuckoos' Eggs, 5ol Pourtales (Count), Deep Sea Corals and the Hassler Expedition, I2 I, 342, 37O [...]
[...] British and Foreign Bird Skins and Eggs. [...]
[...] at his Great Rooms, 38, King Street, Covent Garden, on TUESDAY, April, 13, at half-past 12 o'clock precisely, a choice Selection of British Birds' Eggs in fice condition, from the Collections of Messrs. Wheel wright, Woolley, Hawkins, Milner, and others. Also a few lots of choice British and Foreign Bird Skins. [...]
