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[...] the egg, as shown in Fig. 42, in the form of an oval body about ºn inch in length, something like a small, barrel, surrounded by four bands or hoops of long vibratile hairs [...]
[...] But while certain Starfishes thus go through metamor. phoses, similar in character to, and not less remarkable than, those of sea-eggs ; there are others, as, for instance, the genus Asteracanthium, in which the organs and appendages special to the Pseudembryo, are in abeyance, [...]
[...] in a great degree incompatible ; an insect occupied in the work of reproduction could not continue its voracious feeding. Its life, therefore, after leaving the egg, is divi ded into three stages.” But there are some insects, as, for instance, the Aphides, [...]
[...] well-marked metamorphoses, though in many cases they are passed through within the egg, and thus do not come within the popular ken. “La larve,” says Quatrefages, “n'est qu'un embryon a vie independante.” [...]
[...] /us major), which attains a height of seven feet, ten inches, does not when born exceed one inch and two lines in length ; the chick leaves the egg in a much more ad vanced condition than the thrush ; and so among insects the young cricket is much more advanced, when it leaves [...]
[...] one species. In oviparous animals the condition of the young at birth depends much on the size of the egg ; where the egg is large, the abundant supply of nourishment enables the embryo to attain a higher stage of development; [...]
[...] egg is large, the abundant supply of nourishment enables the embryo to attain a higher stage of development; where the egg is small, and the yolk consequently scanty, it is soon exhausted, and the embryo requires an addi [...]
[...] tional supply of food. In the former case the embryo is more likely to survive; but, on the other hand, when the eggs are large, they cannot be numerous, and a multi plicity of germs is, in some circumstances, a great ad vantage. Even in the same species the development of [...]
[...] plicity of germs is, in some circumstances, a great ad vantage. Even in the same species the development of the egg offers certain differences.* The metamorphoses of insects depend then primarily on the fact that they quit the egg in a very early condi [...]
[...] from the habit which some squirrels possess, possibly the one under consideration, of sucking the eggs of birds; the blood sucking habit he assumed to be an outgrowth from the other. This adoption of another's mode of lite by S. hudsonius, he [...]
[...] MAY I be permitted to make a few observations upon Mr. Sterland's letter in your issue of the 27th of January, relative to the cuckows' eggs’ controversy. In answer to Prof. Newton's query, “If the eggs in question were not cuckows', what birds laid them 7” Mr. Sterland says, [...]
[...] nests they were found.” Besides the well-known fact mentioned by Mr. Newton (NATURE, p. 266), “that when birds lay larger eggs than usual the colouring is commonly less deep,” which tells so strongly against Mr. Sterland, I will only mention the following [...]
[...] against Mr. Sterland, I will only mention the following instances. 1st. The egg No. 9 in the series given by Herr Baldamus, (see Zoologist for April 1868), which the Royal Forester, Mr. Braune, found in the ovary of a just-killed cuckow, and which [...]
[...] (see Zoologist for April 1868), which the Royal Forester, Mr. Braune, found in the ovary of a just-killed cuckow, and which “was coloured exactly like the eggs of Hypolais.” 2ndly. The egg No. 26 in the same series, belonging to the collection of Dr. Dehne, described as a “light-greenish blue egg [...]
[...] are mine.) 3rdly. The two instances given by Mr. H. E. Dresser, (NATURE, p. 218) of two eggs of the cuckow “closely resem bling” those “of the common bunting (AEmberiza miliaria),” one found in a blackbird's, the other in a robin's nest. [...]
[...] laid by a blackbird and a robin respectively, or, will he risk the remark that a common bunting had taken a cuckow-like freak into its head and been laying its eggs in other birds' nests 2 As either alternative is too absurd to be worth a moment's con sideration, we can only conclude that they are cuckows' eggs, [...]
[...] carefully read. * ... -- Therefore I think Mr. Sterland must admit, if he accepts these facts as authentic, that the cuckow’s eggs do vary to a large extent, and doing so, he has little foundation for doubting the identity of the specimens mentioned by Herr Baldamus as taken [...]
[...] tion of that ornithologist, and am not afraid that he had been carried away by a pet theory that led him to imagine this or that egg taken “out of the nest of the hedge-sparrow or tree-pipit” to be a cuckow’s merely because it is “an egg rather larger than the rest, but marked and coloured in a similar manner.” If Mr. [...]
[...] Sir W. Thomson and Geological Time.—Dr. C. M. INGLeby . 507 How large seems the Moon —George C. Thompson . . . . . 507 Cuckows' Eggs.-FRANcis G. BINNIE . . . . . . . . . . 508 Mr. Rusk 1.N on River CoNSERVATION . . . . . . . 508 CAPTAIN FRED. Brome. By Prof. G. Busk, F.R.S. . . . . . . 509 [...]
[...] from reading the bits of zoology in such books as the “Voyage of the Beagle,” the “Malay Archipelago,” or “Kosmos,” and by collecting bird's eggs or butterflies, than he would by painfully wading through the details of Dr. [...]
[...] cate, structureless, membrane (Pl. 5, Fig. 8). It is obvious from this description that these bodies closely resemble eggs, for which indeed Haeckel at first mistook them. Gradually however the yellow sphere broke itself up into smaller spherules (Pl. 5, Fig. 9), after which the containing [...]
[...] in perfect health, and who watched them closely. It also coincides very closely with that of the Gregarinae, another group of singularly egg-like organisms. As another illustration I may take the Magos/hara planula, discovered by Haeckel on the coast of Norway. [...]
[...] into a spherical form (Pl. 5, Fig. I I), and secretes round itself a structureless envelope, which, with the nucleus, gives it a very close resemblance to a minute egg. [...]
[...] Among the Zoophytes Prof. Allman thus describest the process in Laomedea, as representing the Hydroids (Pl. 6, Fig. I, represents the young egg):—“The first step observable in the segmentation-process is the cleavage of the yolk into two segments (Pl. 6, Fig. 2), immediately [...]
[...] the development of a small parasitic worm—the Filaria mustelarum—as given by Van Beneden.: The first pro cess is that within the egg, which represents, so to say, the encysted condition of Magosphaera, ; the yolk di vides itself into two balls (Pl. 6, Fig. 6), then into four [...]
[...] (Pl. 6, Fig. 7), eight, and so on, the cells thus constituted finally forming the young worm. I have myself observed the same stages in the eggs of the very remarkable and abnormal Sphaerularia bombi.S Among the Echinoderms M. Derbès thus describes the [...]
[...] Among the Echinoderms M. Derbès thus describes the first stages (Pl. 6, Figs. 19-13) in the development of the egg of an Echinus (Echinus esculentus):—“Le jaune, commence a se segmenter, d'aborden deux, puis en quatre et ainside suite, chacune des nouvelles cellules separta [...]
[...] I suppose, would now be found to maintain such a theory, and I believe the time will come when it will be generally admitted that the structure of the egg, and its develop [...]
[...] coni in the spherical toruloid cells. Among other media inoculated with this Oidium was a solution of albumen obtained by treating a fresh-laid egg with a solution of carbolic acid, to destroy any organisms adhering to the shell, and then breaking it with carbolised fingers into a “heated” [...]
[...] The various groups of Crustacea, for instance, greatly as they differ in their mature condition, are for the most part very similar when they quit the egg. Haeckel, in his “Naturliche Schopfungsgeschichte,” gives a diagram which illustrates this very clearly, [...]
[...] Fig. 60, Egg of Tardigrade, Kaufmann, Zeit. f. Wiss. Zool. 1851, Pl. If 61, Egg of Tardigrade after the yolk has subdivided. 62, Egg o Tardigrade in the next stage. 63, Egg of Tardigrade more advanced. [...]
[...] Thus then we find in many of the principal groups of insects that, greatly as they differ from one another in their mature condition, when they leave the egg they consist of a head ; a three-segmented thorax, with three pairs of legs; and a many-jointed abdomen, [...]
[...] of Flies, and indeed many naturalists meeting with such a creature would, I am sure, regard it as a small Dipterous larva ; yet Dujardin figures a specimen containing an egg, and seems to have no doubt that it is a mature form. * John LUBBock [...]
[...] Aquarium from the French Coast in April last and suspected at the time by Mr. Saville Kent to be a female, has just verified this anticipation by depositing numerous eggs. The position selected by the creature for their lodgment is most opportune, the several clusters being attached to the rockwork, close to one [...]
[...] public, and enabling the officers on the Naturalist's Staff to watch their progress towards maturity from day to day. The eggs were deposited on Thursday last, the 19th inst., since which time the parent has vigilantly guarded them, usually encircling and partly concealing the whole within a coil of one or more of [...]
[...] her snake-like arms, and vigorously repelling the near approach of any of her comrades in the same tank. Like those of the Argonaut or Paper Nautilus, the eggs of the Octopus are of small size compared with the ova of other Cephalopoda, the individuals being no more than one-eighth of an inch in length, [...]
[...] of oval form, and are crowded round a central flexible stalk two or three inches long. A dozen or more of these compound clusters, each including over a hundred eggs, represent the number already deposited by the female Octopus in the Brighton tanks. The mate of the interesting parent is a fine fellow [...]
[...] of sea and fresh water, household and commissary supplies, &c. Among the species that Mr. Stone carries with him, in the form of partly hatched eggs or young, are shad, cat-fish, yellow perch, wall-eyed or glass-eyed perch, eels, lobsters, and the like; and there is every reason to believe he will succeed in transferring [...]
[...] A small Frog, by no means uncommon in France and Germany (Alytes obstetricans) has a very singular habit. The female lays its eggs (about sixty in number) in a long chain, the ova adhering successively to one another by their tenacious investment. The male twines this long [...]
[...] trunk hose or puffed breeches. Thus encumbered, he retires into some burrow (at least during the day) till the period when the young are ripe for quitting the egg Then he seeks water, into which he has not plunged many minutes when the young burst forth and swim away, and [...]
[...] The female of a peculiar American Tree-frog (Noto trema marsupiatum) has a pouch extending over the whole of the back and opening posteriorly. Into this the eggs are introduced for shelter and protection. A dorsal pouch also exists in the allied American genus, Opisthode/phys. [...]
[...] also exists in the allied American genus, Opisthode/phys. An American species of Hylodes has the habit of laying its eggs in trees singly in the axils of leaves, and the only water they can obtain is the drop or two which may from time to time be there retained. [...]
[...] water they can obtain is the drop or two which may from time to time be there retained. A still more remarkable mode of protecting the egg is developed by the Great Toad of tropical America (Pipa americana). In this case the skin of the females' back at [...]
[...] americana). In this case the skin of the females' back at the laying season thickens greatly and becomes of quite a soft and loose texture. The male, as soon as the eggs are laid, takes them and imbeds them in this thick, soft skin, which closes over them. Each egg then undergoes its [...]
[...] which closes over them. Each egg then undergoes its process of development so enclosed, and the tadpole stage is, in this animal, passed within the egg, so that the young toads emerge from the dorsal cells of the mother com pletely developed miniatures of the adult. As many as [...]
[...] than probable that towards the spawning time the skin of the lower parts becomes spongy, and that, after having deposited the eggs, the female attaches them to it by merely lying over them.” “When the eggs are hatched the excrescences disappear, and the skin of the belly be [...]
[...] kind exists amongst birds or reptiles. In fishes, however, the male of the little Sea-horse (Hippocampus) is pro vided with a ventral pouch in which the eggs are shel tered, and the same class presents us with a mode of carrying the eggs still more bizarre than that of Alytes [...]
[...] it, but rather the reverse. My quotation was from a letter of Mr. Hewitson's, in the Field of March 17, 1868. Mr. Newton mentions the eggs of the Black Cap Warbler and the Tree Pipit, as some indication of the existence of a condition which I doubted in my sixth question. I have not found the [...]
[...] the Tree Pipit, as some indication of the existence of a condition which I doubted in my sixth question. I have not found the eggs of the Black Cap vary more than this, that in some the ground colour was of a warmer tone than in others. The eggs of the Tree Pipit, I freely admit, do vary greatly, but their varia [...]
[...] theless, so much similitude that there is no difficulty in at once recognising them. Mr. Newton says: “If the eggs in question were not cuckows', what birds laid them 2" My reply is, simply, that they were laid by the birds in whose nests they were found. It seems to me far [...]
[...] what birds laid them 2" My reply is, simply, that they were laid by the birds in whose nests they were found. It seems to me far more likely that an egg laid by a certain bird should vary slightly from the rest of her eggs in the same nest, than that another species should lay eggs varying to the extent mentioned by IOr. [...]
[...] been observed in Britain. Mr. Newton does not say he has found them himself, and admits that the evidence on which these German eggs are pronounced cuckoos' might have been more satisfactory. Mr. Hewitson says “few eggs differ less,” and Mr. Dawson Rowley has remarked, in a letter to the Field, “I [...]
[...] satisfactory. Mr. Hewitson says “few eggs differ less,” and Mr. Dawson Rowley has remarked, in a letter to the Field, “I believe few men have taken with their own hands so many eggs of cucuſus camorus as myself; " and yet his experience does not confirm the theory, but the contrary. [...]
[...] confirm the theory, but the contrary. I cannot help feeling that we still want more positive informa tion on this point. Were all the varied eggs alleged to be cuckoos' really laid by that bird 2 I can easily conceive an en thusiastic naturalist, with a favourite theory to maintain, imagine [...]
[...] remarked that the above-mentioned liquid contained considerably less of protein matters than solution of natural flesh or yolk of egg, which might tend to lower the limit of temperature for the production of Infusoria. He referred to some other experiments, and argued from them in favour of heterogenism. —Dr. G. Bizzozero [...]
[...] Use of the word Correlation—W. R. Grove, F.R.S., Q.C. . . . .3s Rainbow Colours. – R. S. NEwAll . . . . . . . . . . 355 Cuckows' Eggs.-W. J. St ER LAN p . - 3 sº [...]
[...] Albumen in Fats (Br. A.), 405 Alexandra Park, proposed School of Horticulture, 503 Alligator's Eggs hatched by a Hen, 17o Alligator's Nest, 90 Allman (Prof., F.R.S.), Mitraria, Vorticellidae, [...]
[...] Birds of Europe and America, 129; Preservation of, 5; Report of “Close Tume” Committee (Br. A.), 363 Birds Eggs, Instructions for Preserving, 191 Birmingham, College of Physical Science, 304; Great Storm, 161, 169, 242 ; Industries, 97; Science, I Io, 169 [...]
[...] Education in Greece, 543; and Police, 543 Edwardsia, Prof. Allman, F.R.S., on (Br. A.), 426 Eggs: Preservation of, 191 ; Retention and Colouring of, 457; Alligators', 90, 17o Egyptian Antiquities, the Way Collection, 305 [...]
[...] Potts (Thos. H.), Preservation of New Zealand Birds, 5; Rain after Fire, 121 ; Bats in New Zealand, 162; Retention and Colouring of Eggs, 457 Pourtales (Count), his Deep-Sea Soundings, 2 Io Pratt (Archdeacon, F.R.S.), “The Figure of the Earth,” 79; [...]
[...] Winchester Scientific and Literary Society, 210 Winter (G. K.), Radial Polarisation of the Corona, 371 Wood (Wm., M.D.), Preserving Birds' Eggs, 191 Wood (W. W.), Earthquakes and Permanent Magnets, 44 Woodward (B. B., B.A.), “Natural History of the Year,” 259 [...]
[...] dessert”:— “The hen of the fable and the fairy tales, which lays golden eggs, is the mythical hen (the earth or the sky) which gives birth every day to the sun. The golden egg is the beginning of life in Orphic and Hindoo cosmogony; [...]
[...] which gives birth every day to the sun. The golden egg is the beginning of life in Orphic and Hindoo cosmogony; by the golden egg the world begins to move, and move ment is the principle of good. The golden egg brings forth the luminous, laborious, and beneficent day. Hence [...]
[...] ment is the principle of good. The golden egg brings forth the luminous, laborious, and beneficent day. Hence it is an excellent augury to begin with the egg, which represents the principle of good, whence the equivocal Latin proverb, ‘Ad ovo ad malum,’ which signified [...]
[...] the egg to the apple, the Latins being accustomed to begin their dinners with hard-boiled eggs, and to end them with apples (a custom which is still preserved [...]
[...] It is clear that a theorist who can thus turn the practi. cal sense of his own dinner-table into mythological non sense about sky-hens and sun-eggs, is no fit guide to students of Comparative Mythology. But his book will be useful to those who can profit by his learning and [...]
[...] - liarly exposed to the attacks of four-footed or ground vermin, and the escape of any of the sitting birds and their eggs from foxes, polecats, hedgehogs, &c., ap pears at first sight almost impossible. This escape is attributed by many, possibly by the majority, of sports [...]
[...] takes place into the intestinal canal, so that the bird becomes scentless, and in this manner her safety and that of her eggs is secured. This explanation would probably apply equally to partridges and other birds nesting on the ground. [...]
[...] examining them it was found that the bundle was bound together by strings of the viscid secretion of Antennarius marmoratiºs, and formed a nest containing the eggs of the fish. Several young examples of this grotesque little animal have been from time to time brought in among [...]
[...] bined action of the fish-ponds or weirs and the blue-fish, the former destroying a large percentage of the spawning fish before they have deposited their eggs, and the latter devouring im mense numbers of young fish aſter they have passed the ordinary perils of immaturity. [...]
[...] Euplexoptera (earwigs), and Thysanoptera, a small group of insects well known to gardeners under the name of Thrips, the larvae when they quit the egg (Pl. I and 2, Figs. I and 2) already much resemble the mature form, differing in fact principally in the absence of wings, which are more [...]
[...] in these communities five kinds of individuals—(1) males ; (2) females, which grow to a very large size, their bodies being distended with eggs, of which they sometimes lay as many as 80,000 in a day; (3) a kind described by some observers as Pupae, but by others as neuters. These [...]
[...] winged, very delicate, green insect, something like a tender Dragonfly, and with bright green, very touching eyes. The females deposit their eggs on plants, not directly on the plant itself, but attached to it by a long white slender footstalk. The larvae have six legs and pow [...]
[...] The Diptera, or Flies, complise insects with two wings only, the hinder pair being represented by minute club shaped organs called halteres. Flies quit the egg generally in the form of fat, fleshy, legless grubs. They [...]
[...] grown they turn into pupae which are generally inac tive ; those of some gnats, however, swim about. Other species, as the gadflies, deposit their eggs on the bodies of animals, within which the grubs, when hatched, feed. The mouth is generally furnished with two hooks which [...]
[...] least as regards its habits, to need any description. Unlike the preceding orders of insects, the Heteroptera quit the egg in a form, differing from that of the perfect insect principally in the absence of wings. The species Constituting this group though very numerous, are generally [...]
[...] and lakes of the United States, the United States Commissioner of Fish and Fisheries made arrangements with Mr. N. W. Clark to hatch out several hundred thousand white fish eggs at his establishment at Clarkston, Michigan, with the special object of transferring them, in due season, to the waters of California. [...]
[...] of transferring them, in due season, to the waters of California. At the proper time, in February last, two hundred thousand eggs were carefully packed and forwarded to California; but, for some unexplained reason, they were nearly all dead on their arrival. In no way discouraged by this experience, the Com [...]
[...] arrival. In no way discouraged by this experience, the Com missioner directed the shipment of a second lot of two hundred thousand eggs, which arrived in good condition, and the greater number have since hatched out at the State hatching establish ment at Clear Lake, into which body of water they will be put [...]
[...] important communication from M. Bavay on the development of a frog (//w/odes J/artinicensis, Tschudi), observed in the island of Guadaloupe. Though it issues from the egg as a perfect an urous abranchiate Batrachian, it can be seen in the semi transparent foetal coverings to go through the tadpole stage, [...]
[...] sent free. BRITISH EGGS, BIRDS, AND INSECTS. MR. J. C. ST EVENS has received Instruc [...]
[...] Covent Garden, on Thursday, March 13th, and following day at half past 12 precisely, without reserve, an important Collection of Bri ish Eggs Bird Skins, and Insects. The eggs are all recent specimens, b'own with one hole, and all well authenticated, and the insects are in fine and perfect prese vºtion. . Also a few foreign and some corked [...]
