Suche löschen...
The photographic news
- Bandzählung
- 27.1883
- Erscheinungsdatum
- 1883
- Sprache
- Englisch
- Signatur
- F 135
- Vorlage
- Hochschule für Grafik und Buchkunst Leipzig
- Digitalisat
- Hochschule für Grafik und Buchkunst Leipzig
- Digitalisat
- SLUB Dresden
- Lizenz-/Rechtehinweis
- Public Domain Mark 1.0
- URN
- urn:nbn:de:bsz:14-db-id1780948042-188300004
- PURL
- http://digital.slub-dresden.de/id1780948042-18830000
- OAI-Identifier
- oai:de:slub-dresden:db:id-1780948042-18830000
- Sammlungen
- Fotografie
- LDP: Historische Bestände der Hochschule für Grafik und Buchkunst Leipzig
- Strukturtyp
- Band
- Parlamentsperiode
- -
- Wahlperiode
- -
- Bandzählung
- No. 1307, September 21, 1883
- Digitalisat
- SLUB Dresden
- Strukturtyp
- Ausgabe
- Parlamentsperiode
- -
- Wahlperiode
- -
-
Zeitschrift
The photographic news
-
Band
Band 27.1883
-
- Titelblatt Titelblatt I
- Register Index III
- Ausgabe Ausgabe 1
- Ausgabe Ausgabe 17
- Ausgabe Ausgabe 33
- Ausgabe Ausgabe 49
- Ausgabe Ausgabe 65
- Ausgabe Ausgabe 81
- Ausgabe Ausgabe 97
- Ausgabe Ausgabe 113
- Ausgabe Ausgabe 129
- Ausgabe Ausgabe 145
- Ausgabe Ausgabe 161
- Ausgabe Ausgabe 177
- Ausgabe Ausgabe 193
- Ausgabe Ausgabe 209
- Ausgabe Ausgabe 225
- Ausgabe Ausgabe 241
- Ausgabe Ausgabe 257
- Ausgabe Ausgabe 273
- Ausgabe Ausgabe 289
- Ausgabe Ausgabe 305
- Ausgabe Ausgabe 321
- Ausgabe Ausgabe 337
- Ausgabe Ausgabe 353
- Ausgabe Ausgabe 369
- Ausgabe Ausgabe 385
- Ausgabe Ausgabe 401
- Ausgabe Ausgabe 417
- Ausgabe Ausgabe 433
- Ausgabe Ausgabe 449
- Ausgabe Ausgabe 465
- Ausgabe Ausgabe 481
- Ausgabe Ausgabe 497
- Ausgabe Ausgabe 513
- Ausgabe Ausgabe 529
- Ausgabe Ausgabe 545
- Ausgabe Ausgabe 561
- Ausgabe Ausgabe 577
- Ausgabe Ausgabe 593
- Ausgabe Ausgabe 609
- Ausgabe Ausgabe 625
- Ausgabe Ausgabe 641
- Ausgabe Ausgabe 657
- Ausgabe Ausgabe 673
- Ausgabe Ausgabe 689
- Ausgabe Ausgabe 705
- Ausgabe Ausgabe 721
- Ausgabe Ausgabe 737
- Ausgabe Ausgabe 753
- Ausgabe Ausgabe 769
- Ausgabe Ausgabe 785
- Ausgabe Ausgabe 801
- Ausgabe Ausgabe 817
-
Band
Band 27.1883
-
- Titel
- The photographic news
- Autor
- Links
- Downloads
- Einzelseite als Bild herunterladen (JPG)
-
Volltext Seite (XML)
September 21, 1883. J THE PHOTOGRAPHIC NEWS. 595 reason than that photographic conventionality demands that pictures should always be produced with a view to be exhibited in a vertical plane. Painters are, for the most part, bound by the same rule, and it appears difficult that in ordinary cases it should be otherwise, as there is generally no means of securing that pictures shall be hung at the angle which would be necessary to produce the desired effect. It is not so, however, with pictures produced for fixing in certain positions. For example : the old Italian painters who decorated the roofs of many of the Italian churches, having to draw on a plane off the vertical, modified their perspective to suit the plane they were working on. Cases are quite conceivable when the same effect might be desired in photographing; that is, where a photographic picture might be destined to be hung in a particular position, and where it would be best to take the negative with the camera so placed that the sensitive plate would be far out of the vertical. Possibly, as photo graphy in its various phases becomes more generally used for home decorations, the question may come to be p tacti cally considered. The possibility of looking with pleasure at pictures, either photographic or otherwise, as they are usually viewed when placed in an album or such like, is only the result of long, if unconscious, education of a kind. It is unnecessary to say that pictures so viewed never represent objects as they in reality are. The impossibility of having a picture so produced as to be correctly seen from more points than one, is most distinctly seen in the case of interiors painted for theatri cal scenery. All are familiar with the distorted appear ance which these have when looked at from either too high or too low. So much is the defect felt, that at least many scene-painters resort to the expedient of having— so to speak—a vanishing line instead of a vanishing point; that is to say, the lines towards the top of the pic tures are made to converge towards a higher point than those lines towards the bottom. By this expedient the distortion is somewhat less noticeable than it would other wise be. SCIENCE AT THE FISHERIES’ EXHIBITION. Since we last reported on the exhibits here of Mr. Thomas Bolton, naturalist, of Birmingham, we find he is quite ful filling our expectations in making the Exhibition most interesting to scientific men, and we should very much like to see some of the most exquisite works of nature, which he is displaying, adequately portrayed by photo graphy. Many of them are of so delicate a nature that it is impossible to preserve them in a condition in the least approaching to what they present in life. The graphic pen-and-ink sketches Mr. Bolton distributes to his sub scribers with the living objects, and of which a selection is shown on the wall behind his stand, do credit to the draughtsmen as diagrams ; but such beautiful organisms deserve the very best artistic illustrations that photo graphy can give. Mr. Bolton shows us some good instan taneous photographs taken by one of his Spanish corres pondents by sunlight; but we think that, with rapid dry plates, better work might be done with artificial light. Much has been done of late in micro-photography with prepared and mounted objects, but we have not seen any really satisfactory attempts at living objects. One of Mr. Bolton’s most popular exhibits of late has been the oyster spat j ust extruded from the parent oyster. The student examining these in the small aquarium with the very lowest magnifying power can somewhat realise the enormous number produced (reputed to be over a million from a single oyster), and the larv are seen swim ming about in the water in ceaseless gyrations, as they do in their natural habitat, seeking for a suitable site to settle down in and commence their ultimate sedentary life, The oyster culturist has much to learn as to the habits, means of distribution, and enemies of these larv®, so as to protect them, and also to provide them suitable localities to attach themselves to. The statistics furnished by Pro fessor Hubrecht, in his paper read before the conference, where he states that one oyster fishery increased in fifteen years from £1,720 to £28,765 annual rent, shows how much judicious cultivation will do even with the little knowledge as yet obtained in this direction. In another microscope, Mr. Bolton shows the oyster spat more highly magnified. They are now seen in their beautiful pearly shells with head protruded, and covered with minute vibratile hairs or cilia continually lashing the water, like oars, in their efforts to swim, and with a little care the gesophagus, mouth, and elementary canal may be traced in the little oyster within the transparent shell. In a small window aquarium Mr. Bolton shows a sample of a muslin tow-net gathering from the large tank below the Memorial in the centre of the gardens. The water in this aquarium is full of a wriggling mass of water-fleas and other organisms of which, in another microscope, is shown the Daphnia pulex in its transparent carapace or shell, which, bent over its head and back, covers its whole body and legs like a cloak, and might easily be mistaken for the bivalve shell of a mollusk. The tesselated[appear- ance of this shell should be noticed, and the continual vibration of the legs under the body creating a strong current of water through the shell directing the floating matter to its mouth, situated just under its prominent beak. The eye is very conspicuous with its mass of black pigment surrounded with numerous crystalline lenses, and is con tinually rolled about by the muscles which are seen sur rounding it. Just above the point where its body is attached to the carapace or shell is seen a little transparent bladder, which is, with regular pulsations, alternately con tracting and expanding. This is its heart, and, with care ful examination, the student will readily perceive the minute granules of blood flowing in streams to and from it in various well marked directions, as around the eye and round the edge of the extremely thin carapace or shell. Its active and jerky swimming motions are carried on by a very large and strong pair of bifurcated antennae or feelers which are placed on each side of its head. The bifurcated extremities are fringed with numerous feathery plumes well adapted to its swimming habits. Between the body and the shell below the point at which they are attached together may be seen a number of eggs. The female carries them about with her in this way till they are hatched. In another microscope is shown a very beautiful grouped Rotifer Zacimdaria socialis. This most interesting example of the wheel animalcules consists of a group of fifty to a hundred or more individuals attached in a radial form by their tails to the water weed. Around this central point the mature animals extrude a gelatinous material which forms a spherical mass into which, on the least sign of danger, they individually or simultaneously retire. In a short time they again gradually push out the long tail, stretching out to more than double their length when wrinkled up as withdrawn, and allowing the body to wholly extend beyond the gelatinous sphere. The body at first shows a nearly oval shape, but the more prominent portion soon expands, or rather seems to open, and extend into a shape like two petals of a flower, round the edge of which is seen the characteristic wheel giving the name to this class of animals. It looks like an endless chain rapidly travelling round the periphery of the lobes of these extended petals. All floating matter is soon seen to be drawn towards this line as to a vortex, and to be carried along in the channel it forms, following the course of the chain till it comes to a notch in the periphery just above the mouth of the animal ; here a selection of the material is made, a large proportion is sent away, but a smaller stream goes down the gullet, by the side of which gullet
- Aktuelle Seite (TXT)
- METS Datei (XML)
- IIIF Manifest (JSON)